| Year |
Citation |
Score |
| 2017 |
Kothandaraman J, Kar S, Sen R, Goeppert A, Olah GA, Prakash GK. An Efficient Reversible Hydrogen Carrier System Based on Amine Reforming of Methanol. Journal of the American Chemical Society. PMID 28151661 DOI: 10.1021/Jacs.6B11637 |
0.785 |
|
| 2017 |
Prakash GS, Narayanan A, Nirmalchandar A, Vaghoo H, Paknia F, Mathew T, Olah GA. Direct synthesis of 2-/3-(trifluoromethyl)thiochroman-4-ones: Superacid-induced tandem alkylation-cyclic acylation of benzenethiols using 2-/3-(trifluoromethyl)acrylic acid Journal of Fluorine Chemistry. 196: 63-66. DOI: 10.1016/J.Jfluchem.2016.08.013 |
0.809 |
|
| 2017 |
Viva FA, Olah GA, Prakash GS. Characterization of Pt supported on commercial fluorinated carbon as cathode catalysts for Polymer Electrolyte Membrane Fuel Cell International Journal of Hydrogen Energy. 42: 15054-15063. DOI: 10.1016/J.Ijhydene.2017.04.255 |
0.689 |
|
| 2017 |
Munoz SB, Ni C, Zhang Z, Wang F, Shao N, Mathew T, Olah GA, Prakash GKS. Selective Late-Stage Hydrodefluorination of Trifluoromethylarenes: A Facile Access to Difluoromethylarenes European Journal of Organic Chemistry. 2017: 2322-2326. DOI: 10.1002/Ejoc.201700396 |
0.788 |
|
| 2016 |
Olah GA, Mathew T, Prakash GK. Chemical Formation of Methanol and Hydrocarbon ("Organic") Derivatives from CO2 and H2-Carbon Sources for Subsequent Biological Cell Evolution and Life's Origin. Journal of the American Chemical Society. PMID 27983827 DOI: 10.1021/Jacs.6B10230 |
0.488 |
|
| 2016 |
Olah GA, Mathew T, Prakash GK. Relevance and significance of extraterrestrial abiological hydrocarbon chemistry. Journal of the American Chemical Society. PMID 27045758 DOI: 10.1021/Jacs.6B03136 |
0.492 |
|
| 2016 |
Olah GA, Mathew T, Prakash GK, Rasul G. Chemical aspects of astrophysically observed extraterrestrial methanol, hydrocarbon derivatives and ions. Journal of the American Chemical Society. PMID 26760052 DOI: 10.1021/Jacs.6B00343 |
0.524 |
|
| 2016 |
Prakash GKS, Gurung L, Marinez ER, Mathew T, Olah GA. Electrophilic amination of aromatics with sodium azide in BF3-H2O Tetrahedron Letters. 57: 288-291. DOI: 10.1016/J.Tetlet.2015.11.104 |
0.343 |
|
| 2015 |
Kothandaraman J, Goeppert A, Czaun M, Prakash GK, Olah GA. Conversion of CO2 from Air into Methanol Using a Polyamine and a Homogeneous Ruthenium Catalyst. Journal of the American Chemical Society. PMID 26713663 DOI: 10.1021/Jacs.5B12354 |
0.534 |
|
| 2015 |
Vaghoo H, Prakash GK, Narayanan A, Choudhary R, Paknia F, Mathew T, Olah GA. Superelectrophilic Activation of Crotonic/Methacrylic Acids: Direct Access to Thiochroman-4-ones from Benzenethiols by Microwave-Assisted One-Pot Alkylation/Cyclic Acylation. Organic Letters. PMID 26636718 DOI: 10.1021/Acs.Orglett.5B03172 |
0.806 |
|
| 2015 |
Munoz SB, Aloia AN, Moore AK, Papp A, Mathew T, Fustero S, Olah GA, Surya Prakash GK. Synthesis of 3-substituted isoindolin-1-ones via a tandem desilylation, cross-coupling, hydroamidation sequence under aqueous phase-transfer conditions. Organic & Biomolecular Chemistry. PMID 26611810 DOI: 10.1039/C5Ob02187A |
0.8 |
|
| 2015 |
Olah GA, Prakash GK, Rasul G. Ab initio/GIAO-CCSD(T) (13) C NMR study of the rearrangement and dynamic aspects of rapidly equilibrating tertiary carbocations, C6 H13+ and C7 H15. Journal of Computational Chemistry. PMID 26192716 DOI: 10.1002/Jcc.24019 |
0.502 |
|
| 2015 |
Olah GA, Goeppert A, Czaun M, Mathew T, May RB, Prakash GK. Single Step Bi-reforming and Oxidative Bi-reforming of Methane (Natural Gas) with Steam and Carbon Dioxide to Metgas (CO-2H2) for Methanol Synthesis: Self-Sufficient Effective and Exclusive Oxygenation of Methane to Methanol with Oxygen. Journal of the American Chemical Society. 137: 8720-9. PMID 26086090 DOI: 10.1021/Jacs.5B02029 |
0.535 |
|
| 2015 |
Rasul G, Prakash GK, Olah GA. MP2, CCSD(T), and Density Functional Theory Study of the 2-Butyl Cation: New Insight into the Methyl- and Hydrogen-Bridged Structures. The Journal of Physical Chemistry. A. 119: 5762-9. PMID 25964993 DOI: 10.1021/Acs.Jpca.5B02127 |
0.497 |
|
| 2015 |
Kothandaraman J, Czaun M, Goeppert A, Haiges R, Jones JP, May RB, Prakash GK, Olah GA. Amine-free reversible hydrogen storage in formate salts catalyzed by ruthenium pincer complex without pH control or solvent change. Chemsuschem. 8: 1442-51. PMID 25824142 DOI: 10.1002/Cssc.201403458 |
0.533 |
|
| 2015 |
Olah GA, Prakash GK. Paul von Ragué Schleyer (1930-2014). Angewandte Chemie (International Ed. in English). 54: 2322-3. PMID 25620623 DOI: 10.1002/Anie.201411952 |
0.447 |
|
| 2015 |
Surya Prakash GK, Gurung L, Glinton KE, Belligund K, Mathew T, Olah GA. Poly(4-vinylpyridine)-nitrating mixture complex (PVP-NM): Solid nitrating mixture equivalent for safe and efficient aromatic nitration Green Chemistry. 17: 3446-3451. DOI: 10.1039/C5Gc00458F |
0.739 |
|
| 2015 |
Prakash GKS, Krishnamoorthy S, Kar S, Olah GA. Direct S-difluoromethylation of thiols using the Ruppert-Prakash reagent Dedicated to Prof. Veronique Gouverneur on the occasion of receiving the ACS Award for Creative Work in Fluorine Chemistry Journal of Fluorine Chemistry. 180: 186-191. DOI: 10.1016/J.Jfluchem.2015.09.011 |
0.773 |
|
| 2014 |
Prakash GK, Wang F, Zhang Z, Haiges R, Rahm M, Christe KO, Mathew T, Olah GA. Long-lived trifluoromethanide anion: a key intermediate in nucleophilic trifluoromethylations. Angewandte Chemie (International Ed. in English). 53: 11575-8. PMID 25146595 DOI: 10.1002/Anie.201406505 |
0.593 |
|
| 2014 |
Prakash GK, Wang F, Rahm M, Zhang Z, Ni C, Shen J, Olah GA. The trifluoromethyl group as a conformational stabilizer and probe: conformational analysis of cinchona alkaloid scaffolds. Journal of the American Chemical Society. 136: 10418-31. PMID 24979676 DOI: 10.1021/Ja504376U |
0.527 |
|
| 2014 |
Goeppert A, Zhang H, Czaun M, May RB, Prakash GK, Olah GA, Narayanan SR. Easily regenerable solid adsorbents based on polyamines for carbon dioxide capture from the air. Chemsuschem. 7: 1386-97. PMID 24644023 DOI: 10.1002/Cssc.201301114 |
0.447 |
|
| 2014 |
Nitsch D, Huber SM, Pöthig A, Narayanan A, Olah GA, Prakash GK, Bach T. Chiral propargylic cations as intermediates in SN1-type reactions: substitution pattern, nuclear magnetic resonance studies, and origin of the diastereoselectivity. Journal of the American Chemical Society. 136: 2851-7. PMID 24494822 DOI: 10.1021/Ja411772N |
0.582 |
|
| 2014 |
Prakash GK, Zhang Z, Wang F, Rahm M, Ni C, Iuliucci M, Haiges R, Olah GA. Stereoselective synthesis of fluoroalkenoates and fluorinated isoxazolidinones: N-substituents governing the dual reactivity of nitrones. Chemistry (Weinheim An Der Bergstrasse, Germany). 20: 831-8. PMID 24338902 DOI: 10.1002/Chem.201303509 |
0.579 |
|
| 2014 |
Prakash GK, Krishnamoorthy S, Ganesh SK, Kulkarni A, Haiges R, Olah GA. N-Difluoromethylation of imidazoles and benzimidazoles using the Ruppert-Prakash reagent under neutral conditions. Organic Letters. 16: 54-7. PMID 24295125 DOI: 10.1021/Ol403007J |
0.801 |
|
| 2014 |
Surya Prakash GK, Shakhmin A, Glinton KE, Rao S, Mathew T, Olah GA. Poly(N-vinylpyrrolidone)-H2O2 and poly(4-vinylpyridine)-H2O2 complexes: Solid H 2O2 equivalents for selective oxidation of sulfides to sulfoxides and ketones to gem-dihydroperoxides Green Chemistry. 16: 3616-3622. DOI: 10.1039/C4Gc00586D |
0.798 |
|
| 2014 |
Prakash GKS, Gurung L, Schmid PC, Wang F, Thomas TE, Panja C, Mathew T, Olah GA. Ipso-Nitrosation of arylboronic acids with chlorotrimethylsilane and sodium nitrite Tetrahedron Letters. 55: 1975-1978. DOI: 10.1016/J.Tetlet.2014.01.138 |
0.689 |
|
| 2014 |
Prakash GKS, Krishnamoorthy S, Ganesh SK, Kulkarni A, Haiges R, Olah GA. ChemInform Abstract: N-Difluoromethylation of Imidazoles and Benzimidazoles Using the Ruppert-Prakash Reagent under Neutral Conditions. Cheminform. 45: no-no. DOI: 10.1002/chin.201423149 |
0.736 |
|
| 2013 |
Prakash GK, Ni C, Wang F, Zhang Z, Haiges R, Olah GA. Difluoro(sulfinato)methylation of N-sulfinyl imines facilitated by 2-pyridyl sulfone: stereoselective synthesis of difluorinated β-amino sulfonic acids and peptidosulfonamides. Angewandte Chemie (International Ed. in English). 52: 10835-9. PMID 24038893 DOI: 10.1002/Anie.201304395 |
0.569 |
|
| 2013 |
Olah GA, Prakash GK, Goeppert A, Czaun M, Mathew T. Self-sufficient and exclusive oxygenation of methane and its source materials with oxygen to methanol via metgas using oxidative bi-reforming. Journal of the American Chemical Society. 135: 10030-1. PMID 23795911 DOI: 10.1021/Ja405439C |
0.492 |
|
| 2013 |
Rasul G, Prakash GK, Olah GA. Ab initio/GIAO-CCSD(T) calculated 13C-11B NMR chemical shift relationships in isoelectronic hypercoordinate carbonium and boronium as well as carbenium and borenium ions. The Journal of Physical Chemistry. A. 117: 4664-8. PMID 23656357 DOI: 10.1021/Jp400754J |
0.475 |
|
| 2013 |
Olah GA, Prakash GK, Rasul G. Study of the fluoro- and chlorodimethylbutyl cations. Proceedings of the National Academy of Sciences of the United States of America. 110: 8427-30. PMID 23650369 DOI: 10.1073/pnas.1306252110 |
0.481 |
|
| 2013 |
Prakash GK, Zhang Z, Wang F, Munoz S, Olah GA. Nucleophilic trifluoromethylation of carbonyl compounds: trifluoroacetaldehyde hydrate as a trifluoromethyl source. The Journal of Organic Chemistry. 78: 3300-5. PMID 23425346 DOI: 10.1021/Jo400202W |
0.794 |
|
| 2013 |
Prakash GK, Gurung L, Jog PV, Tanaka S, Thomas TE, Ganesh N, Haiges R, Mathew T, Olah GA. Direct synthesis of diverse β-fluoroethylamines by a multicomponent protocol. Chemistry (Weinheim An Der Bergstrasse, Germany). 19: 3579-83. PMID 23401097 DOI: 10.1002/Chem.201204621 |
0.484 |
|
| 2013 |
Olah GA, Goeppert A, Czaun M, Prakash GK. Bi-reforming of methane from any source with steam and carbon dioxide exclusively to metgas (CO-2H2) for methanol and hydrocarbon synthesis. Journal of the American Chemical Society. 135: 648-50. PMID 23256664 DOI: 10.1021/Ja311796N |
0.521 |
|
| 2013 |
Rasul G, Prakash GK, Olah GA. Comparative study of alkane dications (protonated alkyl cations, C(n)H(2n+2)2+) and their isoelectronic boron cation analogues. The Journal of Organic Chemistry. 78: 1747-52. PMID 22731108 DOI: 10.1021/Jo300845A |
0.512 |
|
| 2013 |
Prakash GKS, Viva FA, Olah GA. Electrochemical reduction of CO 2 over Sn-Nafion ® coated electrode for a fuel-cell-like device Journal of Power Sources. 223: 68-73. DOI: 10.1016/J.Jpowsour.2012.09.036 |
0.665 |
|
| 2013 |
Surya Prakash GK, Bychinskaya I, Marinez ER, Mathew T, Olah GA. Nafion-Fe: A new efficient "green" lewis acid catalyst for the ketonic strecker reaction Catalysis Letters. 143: 303-312. DOI: 10.1007/S10562-012-0958-2 |
0.825 |
|
| 2012 |
Prakash GK, Jog PV, Batamack PT, Olah GA. Taming of fluoroform: direct nucleophilic trifluoromethylation of Si, B, S, and C centers. Science (New York, N.Y.). 338: 1324-7. PMID 23224551 DOI: 10.1126/Science.1227859 |
0.515 |
|
| 2012 |
Prakash GK, Ganesh SK, Jones JP, Kulkarni A, Masood K, Swabeck JK, Olah GA. Copper-mediated difluoromethylation of (hetero)aryl iodides and β-styryl halides with tributyl(difluoromethyl)stannane. Angewandte Chemie (International Ed. in English). 51: 12090-4. PMID 23109355 DOI: 10.1002/Anie.201205850 |
0.482 |
|
| 2012 |
Prakash GK, Wang F, Zhang Z, Ni C, Haiges R, Olah GA. Enantioselective synthesis of α-stereogenic γ-keto esters via formal umpolung. Organic Letters. 14: 3260-3. PMID 22708653 DOI: 10.1021/Ol301112M |
0.614 |
|
| 2012 |
Prakash GK, Krishnan HS, Jog PV, Iyer AP, Olah GA. A domino approach of Heck coupling for the synthesis of β-trifluoromethylstyrenes. Organic Letters. 14: 1146-9. PMID 22303869 DOI: 10.1021/Ol300076Y |
0.531 |
|
| 2012 |
Prakash GK, Mathew T, Olah GA. Gallium(III) triflate: an efficient and a sustainable Lewis acid catalyst for organic synthetic transformations. Accounts of Chemical Research. 45: 565-77. PMID 22148160 DOI: 10.1021/Ar2002039 |
0.599 |
|
| 2012 |
Rasul G, Olah GA, Prakash GK. C7H12(2+): a prototype hexacoordinate carbonium ion. The Journal of Physical Chemistry. A. 116: 756-60. PMID 22129100 DOI: 10.1021/Jp210205N |
0.495 |
|
| 2012 |
Prakash GKS, Munoz SB, Papp A, Masood K, Bychinskaya I, Mathew T, Olah GA. Nafion-Ru: A Sustainable Catalyst for Selective Hydration of Nitriles to Amides Asian Journal of Organic Chemistry. 1: 146-149. DOI: 10.1002/Ajoc.201200043 |
0.759 |
|
| 2012 |
Prakash GKS, Mathew T, Panja C, Kulkarni A, Olah GA, Harmer MA. Tetraflic acid (1,1,2,2-Tetrafluoroethanesulfonic acid, HC 2F 4SO 3H) and gallium tetraflate as effective catalysts in organic synthesis Advanced Synthesis and Catalysis. 354: 2163-2171. DOI: 10.1002/Adsc.201200111 |
0.713 |
|
| 2011 |
Goeppert A, Czaun M, May RB, Prakash GK, Olah GA, Narayanan SR. Carbon dioxide capture from the air using a polyamine based regenerable solid adsorbent. Journal of the American Chemical Society. 133: 20164-7. PMID 22103291 DOI: 10.1021/Ja2100005 |
0.457 |
|
| 2011 |
Prakash GK, Wang F, Rahm M, Shen J, Ni C, Haiges R, Olah GA. On the nature of C-H···F-C interactions in hindered CF3-C(sp3) bond rotations. Angewandte Chemie (International Ed. in English). 50: 11761-4. PMID 21984045 DOI: 10.1002/Anie.201105288 |
0.515 |
|
| 2011 |
Prakash GK, Paknia F, Mathew T, Mlostoń G, Joschek JP, Olah GA. Fluoroanalogs of DDT: superacidic BF3-H2O catalyzed facile synthesis of 1,1,1-trifluoro-2,2-diarylethanes and 1,1-difluoro-2,2-diarylethanes. Organic Letters. 13: 4128-31. PMID 21749051 DOI: 10.1021/Ol201669A |
0.807 |
|
| 2011 |
Wang F, Luo T, Hu J, Wang Y, Krishnan HS, Jog PV, Ganesh SK, Prakash GK, Olah GA. Synthesis of gem-difluorinated cyclopropanes and cyclopropenes: trifluoromethyltrimethylsilane as a difluorocarbene source. Angewandte Chemie (International Ed. in English). 50: 7153-7. PMID 21681877 DOI: 10.1002/Anie.201101691 |
0.611 |
|
| 2011 |
Prakash GK, Wang F, Ni C, Shen J, Haiges R, Yudin AK, Mathew T, Olah GA. Conformational study of 9-dehydro-9-trifluoromethyl cinchona alkaloids via 19F NMR spectroscopy: emergence of trifluoromethyl moiety as a conformational stabilizer and a probe. Journal of the American Chemical Society. 133: 9992-5. PMID 21648459 DOI: 10.1021/Ja202373D |
0.646 |
|
| 2011 |
Olah GA, Prakash GK, Goeppert A. Anthropogenic chemical carbon cycle for a sustainable future. Journal of the American Chemical Society. 133: 12881-98. PMID 21612273 DOI: 10.1021/Ja202642Y |
0.482 |
|
| 2011 |
Czaun M, Goeppert A, May R, Haiges R, Prakash GK, Olah GA. Hydrogen generation from formic acid decomposition by ruthenium carbonyl complexes. Tetraruthenium dodecacarbonyl tetrahydride as an active intermediate. Chemsuschem. 4: 1241-8. PMID 21404444 DOI: 10.1002/Cssc.201000446 |
0.566 |
|
| 2011 |
Prakash GK, Ni C, Wang F, Hu J, Olah GA. From difluoromethyl 2-pyridyl sulfone to difluorinated sulfonates: a protocol for nucleophilic difluoro(sulfonato)methylation. Angewandte Chemie (International Ed. in English). 50: 2559-63. PMID 21370337 DOI: 10.1002/Anie.201007594 |
0.618 |
|
| 2011 |
Prakash GK, Jog PV, Krishnan HS, Olah GA. A domino approach (hydrolysis/dehydrohalogenation/Heck coupling) for the synthesis of styrene sulfonate salts. Journal of the American Chemical Society. 133: 2140-3. PMID 21268583 DOI: 10.1021/Ja111462H |
0.566 |
|
| 2011 |
Prakash GKS, Ismail R, Garcia J, Panja C, Rasul G, Mathew T, Olah GA. α-Halogenation of carbonyl compounds: Halotrimethylsilane-nitrate salt couple as an efficient halogenating reagent system Tetrahedron Letters. 52: 1217-1221. DOI: 10.1016/J.Tetlet.2011.01.039 |
0.752 |
|
| 2011 |
Prakash GKS, Krause FC, Viva FA, Narayanan SR, Olah GA. Study of operating conditions and cell design on the performance of alkaline anion exchange membrane based direct methanol fuel cells Journal of Power Sources. 196: 7967-7972. DOI: 10.1016/J.Jpowsour.2011.05.056 |
0.769 |
|
| 2011 |
Surya Prakash GK, Do C, Mathew T, Olah GA. Reduction of carbonyl to methylene: Organosilane-Ga(OTf)3 as an efficient reductant system Catalysis Letters. 141: 507-511. DOI: 10.1007/S10562-011-0551-0 |
0.633 |
|
| 2010 |
Rasul G, Prakash GK, Olah GA. Tri- and tetraprotonated ethane (C2H9(3+) and C2H10(4+)) containing five- and six-coordinate carbons. The Journal of Physical Chemistry. A. 114: 12124-7. PMID 20964378 DOI: 10.1021/Jp108820R |
0.493 |
|
| 2010 |
Surya Prakash GK, Zibinsky M, Upton TG, Kashemirov BA, McKenna CE, Oertell K, Goodman MF, Batra VK, Pedersen LC, Beard WA, Shock DD, Wilson SH, Olah GA. Synthesis and biological evaluation of fluorinated deoxynucleotide analogs based on bis-(difluoromethylene)triphosphoric acid. Proceedings of the National Academy of Sciences of the United States of America. 107: 15693-8. PMID 20724659 DOI: 10.1073/Pnas.1007430107 |
0.789 |
|
| 2010 |
Prakash GK, Wang Y, Mogi R, Hu J, Mathew T, Olah GA. Nucleophilic perfluoroalkylation of imines and carbonyls: perfluoroalkyl sulfones as efficient perfluoroalkyl-transfer motifs. Organic Letters. 12: 2932-5. PMID 20518520 DOI: 10.1021/Ol100918D |
0.636 |
|
| 2010 |
Olah GA, Prakash GK, Rasul G. Vicinal dihalonium ions: diprotonated and dimethylated chlorine [H2Cl2(2+), (CH3)2Cl2(2+)] and bromine [H2Br2(2+), (CH3)2Br2(2+)] dications. Proceedings of the National Academy of Sciences of the United States of America. 107: 6716-20. PMID 20351253 DOI: 10.1073/Pnas.1001603107 |
0.468 |
|
| 2010 |
Rasul G, Chen JL, Prakash GK, Olah GA. Ab initio/GIAO-CCSD(T) study of the trimethyl- and dimethylsilicenium ions: structures, (29)Si, (13)C, and (1)H NMR chemical shifts, and IR spectra. The Journal of Physical Chemistry. A. 114: 4394-9. PMID 20218706 DOI: 10.1021/jp911490k |
0.498 |
|
| 2010 |
Prakash GK, Paknia F, Vaghoo H, Rasul G, Mathew T, Olah GA. Preparation of trifluoromethylated dihydrocoumarins, indanones, and arylpropanoic acids by tandem superacidic activation of 2-(trifluoromethyl)acrylic acid with arenes. The Journal of Organic Chemistry. 75: 2219-26. PMID 20218629 DOI: 10.1021/Jo9026275 |
0.797 |
|
| 2010 |
Prakash GKS, Wang F, Ni C, Thomas TJ, Olah GA. Efficient synthesis of α-(fluoro/chloro/methoxy)disulfonylmethane derivatives as tunable substituted methyl synthons via a new C-S bond forming strategy Journal of Fluorine Chemistry. 131: 1007-1012. DOI: 10.1016/J.Jfluchem.2010.07.006 |
0.317 |
|
| 2010 |
Prakash GKS, Shakhmin A, Zibinsky M, Ledneczki I, Chacko S, Olah GA. Synthesis of monofluoroalkenes via Julia-Kocienski reaction Journal of Fluorine Chemistry. 131: 1192-1197. DOI: 10.1016/J.Jfluchem.2010.06.009 |
0.8 |
|
| 2010 |
Prakash SGK, Fogassy G, Olah GA. Microwave-Assisted Nafion-H Catalyzed Friedel–Crafts Type Reaction of Aromatic Aldehydes with Arenes: Synthesis of Triarylmethanes Catalysis Letters. 138: 155-159. DOI: 10.1007/s10562-010-0406-0 |
0.32 |
|
| 2010 |
Surya Prakash GK, Do C, Mathew T, Olah GA. Gallium(III) triflate catalyzed direct reductive amination of aldehydes Catalysis Letters. 137: 111-117. DOI: 10.1007/S10562-010-0347-7 |
0.651 |
|
| 2010 |
Bucsi I, Torok B, Marco AI, Rasul G, Prakash GKS, Olah GA. ChemInform Abstract: Considered Synthetic Methods and Reactions. Part 205. Stable Dialkyl Ether/Poly(Hydrogen Fluoride) Complexes: Dimethyl Ether/Poly(Hydrogen Fluoride), a New, Convenient, and Effective Fluorinating Agent. Cheminform. 33: no-no. DOI: 10.1002/chin.200243063 |
0.56 |
|
| 2010 |
Prakash GKS, Tongco EC, Mathew T, Vankar YD, Olah GA. ChemInform Abstract: Considered Synthetic Methods and Reactions. Part 204. Preparation of 3-Trifluoromethyl-2-cycloalkenones by the Oxidative Rearrangement of Trifluoromethylated Tertiary Allylic Alcohols with Pyridinium Chlorochromate. Cheminform. 31: no-no. DOI: 10.1002/chin.200015048 |
0.531 |
|
| 2010 |
Olah GA, Marinez ER, Prakash GKS. ChemInform Abstract: Considered Synthetic Methods and Reactions. Part 203. Trifluoromethanesulfonic Acid Catalyzed Preparation of Symmetrical Diaryl Sulfoxides from Arenes and Thionyl Chloride. Cheminform. 30: no-no. DOI: 10.1002/chin.199949095 |
0.329 |
|
| 2010 |
Hachoumy M, Mathew T, Tongco EC, Vankar YD, Prakash GKS, Olah GA. ChemInform Abstract: Synthetic Methods and Reactions. Part 199. Nafion-H Catalyzed Isomerization of Glycidic to α-Hydroxy-β,γ-Unsaturated Esters: Application in the Synthesis of a Trifluoromethylated Vinylic Epoxide. Cheminform. 30: no-no. DOI: 10.1002/chin.199927116 |
0.54 |
|
| 2010 |
WIEDEMANN J, HEINER T, MLOSTON G, PRAKASH GKS, OLAH GA. ChemInform Abstract: Synthetic Methods and Reactions. Part 201. Direct Preparation of Trifluoromethyl Ketones from Carboxylic Esters: Trifluoromethylation with (Trifluoromethyl)trimethylsilane. Cheminform. 29: no-no. DOI: 10.1002/chin.199828076 |
0.315 |
|
| 2010 |
OLAH GA, BURRICHTER A, RASUL G, YUDIN AK, PRAKASH GKS. ChemInform Abstract: Onium Ions. Part 45. Preparation, NMR, and ab initio/IGLO Study of Trifluoromethyl-Substituted Carboxonium Ions (II), (IV), (VI), and ( VII). Cheminform. 27: no-no. DOI: 10.1002/chin.199631057 |
0.473 |
|
| 2010 |
PRAKASH GKS, YUDIN AK, DEFFIEUX D, OLAH GA. ChemInform Abstract: Synthetic Methods. Part 197. Facile Preparation of (Trifluoromethyl) tributyltin and Transtrifluoromethylation of Disilyl Sulfides to the Corresponding Trifluoromethylsilanes. Cheminform. 27: no-no. DOI: 10.1002/chin.199625163 |
0.517 |
|
| 2010 |
OLAH GA, RASUL G, YUDIN AK, BURRICHTER A, PRAKASH GKS, CHISTYAKOV AL, STANKEVICH IV, AKHREM IS, GAMBARYAN NP, VOL'PIN ME. ChemInform Abstract: Chemistry in Superacids. Part 21. Trihalomethyl Cations and Their Superelectrophilic Activation Cheminform. 27: no-no. DOI: 10.1002/chin.199624048 |
0.48 |
|
| 2010 |
PRAKASH GKS, YORK C, LIAO Q, KOTIAN K, OLAH GA. ChemInform Abstract: Synthetic Methods and Reactions. Part 185. N-Carboethoxypiperidine, a Convenient Reagent for the Preparation of Symmetrical Ketones from Organolithiums. Cheminform. 26: no-no. DOI: 10.1002/chin.199528100 |
0.303 |
|
| 2010 |
OLAH GA, HARTZ N, RASUL G, PRAKASH GKS, BURKHART M, LAMMERTSMA K. ChemInform Abstract: Chemistry in Superacids. Part 14. Protio-2-propyl Dication (Propane Dication, C3H2+ 8): Hydrogen/Deuterium Exchange and Theoretical Study. Differentiation of Reactive Gitonic (Proximal) from Stable Distonic ( Distant) Dications and th Cheminform. 25: no-no. DOI: 10.1002/chin.199434033 |
0.428 |
|
| 2010 |
PRAKASH GK, BUCSI I, ANISZFELD R, OLAH GA. ChemInform Abstract: Improved Preparation, Chemical Reactivity, and Functionalization of C60 and C70 Fullerenes Cheminform. 25: no-no. DOI: 10.1002/chin.199425291 |
0.485 |
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| 2010 |
OLAH GA, WANG Q, SANDFORD G, OXYZOGLOU AB, PRAKASH GKS. ChemInform Abstract: Synthetic Methods and Reactions. Part 182. Superelectrophilic Tscherniac Amidomethylation of Aromatics with N- Hydroxymethylphthalimide in Trifluoromethanesulfonic Acid. Cheminform. 25: no-no. DOI: 10.1002/chin.199414103 |
0.582 |
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| 2010 |
OLAH GA, WANG Q, LI X, BUCSI I. ChemInform Abstract: Synthetic Methods and Reactions. Part 173. Aromatic Nitration with Potassium Nitrate or Nitric Acid and Boron Trifluoride Monohydrated. Cheminform. 24: no-no. DOI: 10.1002/chin.199333103 |
0.3 |
|
| 2010 |
OLAH GA, WANG Q, LI X, PRAKASH GKS. ChemInform Abstract: Synthetic Methods and Reactions. Part 178. Convenient Preparation of Alkyl Nitrates Free of Nitrites with Potassium Nitrate and Boron Trifluoride Hydrate. Cheminform. 24: no-no. DOI: 10.1002/chin.199325120 |
0.334 |
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| 2010 |
OLAH GA, WANG Q, TRIVEDI NJ, PRAKASH GKS. ChemInform Abstract: Synthetic Methods and Reactions. Part 171. Boron Trifluoride Monohydrate Catalyzed One-Flask Preparation of Sulfides from Carbonyl Compounds with Thiols and Triethylsilane. Cheminform. 23: no-no. DOI: 10.1002/chin.199236134 |
0.344 |
|
| 2010 |
YAMATO T, HIDESHIMA C, SUEHIRO K, TASHIRO M, PRAKASH GKS, OLAH GA. ChemInform Abstract: Organic Reactions Catalyzed by Solid Superacids. Part 10. Perfluorinated Sulfonic Acid Resin (Nafion-H) Catalyzed Ring Closure Reaction of 2,2′-Diaminobiphenyls. A Preparative Route to Carbazoles. Cheminform. 23: no-no. DOI: 10.1002/chin.199213199 |
0.362 |
|
| 2010 |
YAMATO T, SAKAUE N, FURUSAWA T, TASHIRO M, PRAKASH GKS, OLAH GA. ChemInform Abstract: Organic Reactions Catalyzed by Solid Superacids. Part 9. Friedel- Crafts Cyclobenzylation of Benzene with Bis(hydroxymethyl) diarylalkanes Catalyzed by a Perfluorinated Sulfonic Acid Resin ( Nafion-H). Cheminform. 22: no-no. DOI: 10.1002/chin.199152158 |
0.305 |
|
| 2010 |
OLAH GA, WU A. ChemInform Abstract: Synthetic Methods and Reactions. Part 161. Selective Reduction of Hydroxy Carbonyl to Carbonyl Compounds with Trialkylborane/ Trifluoromethanesulfonic Acid. Cheminform. 22: no-no. DOI: 10.1002/CHIN.199146100 |
0.348 |
|
| 2010 |
OLAH GA, WU A. ChemInform Abstract: Synthetic Methods and Reactions. Part 160. Preparation of Phenyl Alkyl Ethers and Phenyl Esters from Benzenediazonium Tetrafluoroborate with Alkoxytrimethylsilanes and Trimethylsilyl Esters. Cheminform. 22: no-no. DOI: 10.1002/chin.199137081 |
0.325 |
|
| 2010 |
OLAH GA, WU A. ChemInform Abstract: Preparation of 1,2-Diketones from Nonenolizable Aliphatic and Aromatic Acyl Chlorides with Diethyl 1-Alkyl(Aryl)-1-(trimethylsiloxy) methanephosphonates. Cheminform. 22: no-no. DOI: 10.1002/chin.199133125 |
0.311 |
|
| 2010 |
OLAH GA, KRISHNAMURTI R, PRAKASH GKS. ChemInform Abstract: Synthetic Methods and Reactions. Part 150. Preparation of 1,3- Functionalized Adamantanes by the Lewis Acid-Catalyzed Electrophilic Cyclization of 7-Methylenebicyclo(3.3.1)nonan-3-one in the Presence of π- and N-Nucleophiles. Cheminform. 22: no-no. DOI: 10.1002/chin.199101156 |
0.322 |
|
| 2009 |
Prakash GK, Vaghoo H, Venkat A, Panja C, Chacko S, Mathew T, Olah GA. Gallium (III) triflate-catalyzed synthesis of heterocycles: quinoxalines, 1,5-benzodiazepines and their fluorinated derivatives. Future Medicinal Chemistry. 1: 909-20. PMID 21426089 DOI: 10.4155/Fmc.09.77 |
0.779 |
|
| 2009 |
Prakash GK, Panja C, Shakhmin A, Shah E, Mathew T, Olah GA. BF3-H2O catalyzed hydroxyalkylation of aromatics with aromatic aldehydes and dicarboxaldehydes: efficient synthesis of triarylmethanes, diarylmethylbenzaldehydes, and anthracene derivatives. The Journal of Organic Chemistry. 74: 8659-68. PMID 19863094 DOI: 10.1021/Jo901668J |
0.824 |
|
| 2009 |
Prakash GK, Wang F, Shao N, Mathew T, Rasul G, Haiges R, Stewart T, Olah GA. A persistent alpha-fluorocarbanion and its analogues: preparation, characterization, and computational study. Angewandte Chemie (International Ed. in English). 48: 5358-62. PMID 19572305 DOI: 10.1002/Anie.200901414 |
0.718 |
|
| 2009 |
Rasul G, Chen JL, Prakash GK, Olah GA. Ab initio/DFT/GIAO-CCSD(T) calculational study of the t-butyl cation: comparison of experimental data with structures, energetics, IR vibrational frequencies, and 13C NMR chemical shifts indicating preferred C(s) conformation. The Journal of Physical Chemistry. A. 113: 6795-9. PMID 19476321 DOI: 10.1021/Jp903002Z |
0.487 |
|
| 2009 |
Olah GA, Prakash GK, Rasul G. Calculational study of fluoroammonium and related cations and dications. Chemistry (Weinheim An Der Bergstrasse, Germany). 15: 8443-8. PMID 19444824 DOI: 10.1002/Chem.200900335 |
0.503 |
|
| 2009 |
Prakash GK, Wang F, Stewart T, Mathew T, Olah GA. Alpha-fluoro-alpha-nitro(phenylsulfonyl)methane as a fluoromethyl pronucleophile: efficient stereoselective Michael addition to chalcones. Proceedings of the National Academy of Sciences of the United States of America. 106: 4090-4. PMID 19237559 DOI: 10.1073/Pnas.0900179106 |
0.701 |
|
| 2009 |
Prakash GK, Chacko S, Vaghoo H, Shao N, Gurung L, Mathew T, Olah GA. Efficient nucleophilic fluoromethylation and subsequent transformation of alkyl and benzyl halides using fluorobis(phenylsulfonyl)methane. Organic Letters. 11: 1127-30. PMID 19182915 DOI: 10.1021/Ol8029627 |
0.766 |
|
| 2009 |
Olah GA, Goeppert A, Prakash GK. Chemical recycling of carbon dioxide to methanol and dimethyl ether: from greenhouse gas to renewable, environmentally carbon neutral fuels and synthetic hydrocarbons. The Journal of Organic Chemistry. 74: 487-98. PMID 19063591 DOI: 10.1021/Jo801260F |
0.507 |
|
| 2009 |
Stadler D, Goeppert A, Rasul G, Olah GA, Prakash GK, Bach T. Chiral benzylic carbocations: low-temperature NMR studies and theoretical calculations. The Journal of Organic Chemistry. 74: 312-8. PMID 19035759 DOI: 10.1021/Jo802296E |
0.56 |
|
| 2009 |
Prakash GKS, Moran MD, Mathew T, Olah GA. Ipso-amidation of arylboronic acids: Xenon difluoride-nitriles as efficient reagent systems Journal of Fluorine Chemistry. 130: 806-809. DOI: 10.1016/J.Jfluchem.2009.05.015 |
0.656 |
|
| 2009 |
Prakash GKS, Panja C, Do C, Bychinskaya I, Vaghoo H, Mathew T, Olah GA. ChemInform Abstract: Efficient One-Pot Synthesis of Novel Fluorinated Heterocycles Using Trimethylsilyl Trifluoromethanesulfonate as a Metal-Free Homogeneous Lewis Acid Catalyst Cheminform. 40. DOI: 10.1002/chin.200939247 |
0.804 |
|
| 2009 |
Prakash GKS, Chacko S, Panja C, Thomas TE, Gurung L, Rasul G, Mathew T, Olah GA. Regioselective synthesis of phenols and halophenols from arylboronie acids using solid poly(N-vinylpyrrolidone)/hydrogen peroxide and poly(4-vinylpyridine) /hydrogen peroxide complexes Advanced Synthesis and Catalysis. 351: 1567-1574. DOI: 10.1002/Adsc.200900071 |
0.735 |
|
| 2008 |
Prakash GK, Zhao X, Chacko S, Wang F, Vaghoo H, Olah GA. Efficient 1,4-addition of alpha-substituted fluoro(phenylsulfonyl)methane derivatives to alpha,beta-unsaturated compounds. Beilstein Journal of Organic Chemistry. 4: 17. PMID 18941481 DOI: 10.3762/Bjoc.4.17 |
0.775 |
|
| 2008 |
Prakash GK, Ledneczki I, Chacko S, Olah GA. Direct electrophilic monofluoromethylation. Organic Letters. 10: 557-60. PMID 18198880 DOI: 10.1021/Ol702500U |
0.669 |
|
| 2008 |
Olah GA, Prakash GK, Rasul G. Protonated tert-pentyl dication (C5H122+, isopentane dication). Dalton Transactions (Cambridge, England : 2003). 521-6. PMID 18185869 DOI: 10.1039/B713188G |
0.491 |
|
| 2008 |
Prakash GKS, Thomas TE, Bychinskaya I, Prakash AG, Panja C, Vaghoo H, Olah GA. Efficient green synthesis of α-aminonitriles, precursors of α-amino acids Green Chemistry. 10: 1105-1110. DOI: 10.1039/B803152E |
0.799 |
|
| 2008 |
Prakash GS, Suresh P, Viva F, Olah GA. Novel single step electrochemical route to γ-MnO2 nanoparticle-coated polyaniline nanofibers: Thermal stability and formic acid oxidation on the resulting nanocomposites Journal of Power Sources. 181: 79-84. DOI: 10.1016/J.Jpowsour.2008.03.007 |
0.687 |
|
| 2008 |
Prakash GKS, Ledneczki I, Chacko S, Ravi S, Olah GA. Stereoselective synthesis of fluorobis(phenylsulfonyl)methyl-substituted alkenes using free radical fluoroalkylation Journal of Fluorine Chemistry. 129: 1036-1040. DOI: 10.1016/J.Jfluchem.2008.04.013 |
0.545 |
|
| 2007 |
Abid M, Savolainen M, Landge S, Hu J, Surya Prakash GK, Olah GA, Török B. SYNTHESIS OF TRIFLUOROMETHYL-IMINES BY SOLID ACID/SUPERACID CATALYZED MICROWAVE ASSISTED APPROACH. Journal of Fluorine Chemistry. 128: 587-594. PMID 21949445 DOI: 10.1016/J.Jfluchem.2007.01.011 |
0.805 |
|
| 2007 |
Prakash GK, Weber C, Chacko S, Olah GA. New solid-phase bound electrophilic difluoromethylating reagent. Journal of Combinatorial Chemistry. 9: 920-3. PMID 17939739 DOI: 10.1021/Cc700148Z |
0.62 |
|
| 2007 |
Koltunov KY, Prakash GK, Rasul G, Olah GA. Superacidic activation of quinoline and isoquinoline; their reactions with cyclohexane and benzene(1). The Journal of Organic Chemistry. 72: 7394-7. PMID 17705536 DOI: 10.1021/Jo070875X |
0.608 |
|
| 2007 |
Prakash GK, Mathew T, Panja C, Olah GA. Chlorotrimethylsilane-nitrate salts as oxidants: direct oxidative conversion of thiols and disulfides to sulfonyl chlorides. The Journal of Organic Chemistry. 72: 5847-50. PMID 17585828 DOI: 10.1021/Jo070907G |
0.737 |
|
| 2007 |
Prakash GK, Chacko S, Alconcel S, Stewart T, Mathew T, Olah GA. Stereoselective monofluoromethylation of primary and secondary alcohols by using a fluorocarbon nucleophile in a Mitsunobu reaction. Angewandte Chemie (International Ed. in English). 46: 4933-6. PMID 17523145 DOI: 10.1002/Anie.200700834 |
0.732 |
|
| 2007 |
Prakash GK, Weber C, Chacko S, Olah GA. New electrophilic difluoromethylating reagent. Organic Letters. 9: 1863-6. PMID 17444648 DOI: 10.1021/Ol070195G |
0.684 |
|
| 2007 |
Prakash GK, Vaghoo H, Panja C, Surampudi V, Kultyshev R, Mathew T, Olah GA. Effect of carbonates/phosphates as nucleophilic catalysts in dimethylformamide for efficient cyanosilylation of aldehydes and ketones. Proceedings of the National Academy of Sciences of the United States of America. 104: 3026-30. PMID 17360603 DOI: 10.1073/Pnas.0611309104 |
0.797 |
|
| 2007 |
Prakash GK, Mathew T, Panja C, Alconcel S, Vaghoo H, Do C, Olah GA. Gallium (III) triflate catalyzed efficient Strecker reaction of ketones and their fluorinated analogs. Proceedings of the National Academy of Sciences of the United States of America. 104: 3703-6. PMID 17360416 DOI: 10.1073/Pnas.0611316104 |
0.815 |
|
| 2007 |
Reddy VP, Rasul G, Prakash GK, Olah GA. Structural studies of nonclassical cyclobutylmethyl cations by the ab initio method. The Journal of Organic Chemistry. 72: 3076-80. PMID 17335243 DOI: 10.1021/Jo0701334 |
0.482 |
|
| 2007 |
Prakash GK, Mathew T, Panja C, Vaghoo H, Venkataraman K, Olah GA. Efficient one-pot synthesis of fluorinated benzimidazolines, benzothiazolines, benzoxazolines, and dihydrobenzoxazinones using gallium(III) triflate as a catalyst. Organic Letters. 9: 179-82. PMID 17217259 DOI: 10.1021/Ol062562E |
0.814 |
|
| 2007 |
Zhu L, Li Y, Ni C, Hu J, Beier P, Wang Y, Surya Prakash GK, Olah GA. Nucleophilic (phenylsulfinyl)difluoromethylation of carbonyl compounds with difluoromethyl phenyl sulfoxide Journal of Fluorine Chemistry. 128: 1241-1247. DOI: 10.1016/J.Jfluchem.2007.05.003 |
0.508 |
|
| 2007 |
Mogi R, Morisaki K, Hu J, Prakash GS, Olah GA. Synthesis of 1,1-difluoroethylsilanes and their application for the introduction of the 1,1-difluoroethyl group Journal of Fluorine Chemistry. 128: 1098-1103. DOI: 10.1016/J.Jfluchem.2007.03.013 |
0.447 |
|
| 2007 |
Prakash GKS, Panja C, Mathew T, Olah GA. BF3-H2O catalyzed Fries rearrangement of phenolic esters Catalysis Letters. 114: 24-29. DOI: 10.1007/S10562-007-9033-9 |
0.705 |
|
| 2007 |
Olah GA, Mathew T, Panja C, Smith K, Prakash GKS. PVP-SO2 complex as a solid mild acid catalyst for efficient one pot, three component, Strecker synthesis of α-aminonitriles Catalysis Letters. 114: 1-7. DOI: 10.1007/S10562-007-9031-Y |
0.744 |
|
| 2006 |
Rasul G, Prakash GK, Olah GA. Comparative study of the hypercoordinate ions C7H9+ and C8H9+ by the ab initio/GIAO-CCSD(T) method. The Journal of Physical Chemistry. A. 110: 11320-3. PMID 17004741 DOI: 10.1021/Jp060800H |
0.469 |
|
| 2006 |
Prakash GK, Panja C, Vaghoo H, Surampudi V, Kultyshev R, Mandal M, Rasul G, Mathew T, Olah GA. Facile synthesis of TMS-protected trifluoromethylated alcohols using trifluoromethyltrimethylsilane (TMSCF3) and various nucleophilic catalysts in DMF. The Journal of Organic Chemistry. 71: 6806-13. PMID 16930030 DOI: 10.1021/Jo060835D |
0.816 |
|
| 2006 |
Prakash GK, Mogi R, Olah GA. Preparation of tri- and difluoromethylated amines from aldimines using (trifluoromethyl)trimethylsilane. Organic Letters. 8: 3589-92. PMID 16869667 DOI: 10.1021/Ol061357W |
0.593 |
|
| 2006 |
Mühlthau F, Stadler D, Goeppert A, Olah GA, Prakash GK, Bach T. Chiral alpha-branched benzylic carbocations: diastereoselective intermolecular reactions with arene nucleophiles and NMR spectroscopic studies. Journal of the American Chemical Society. 128: 9668-75. PMID 16866519 DOI: 10.1021/Ja062102G |
0.576 |
|
| 2006 |
Rasul G, Olah GA, Prakash GK. Ab Initio/GIAO-CCSD(T) study of bicyclic and related strained olefins. Structures and 13C NMR chemical shifts. The Journal of Physical Chemistry. A. 110: 7197-201. PMID 16737271 DOI: 10.1021/Jp058273+ |
0.485 |
|
| 2006 |
Rasul G, Prakash GK, Olah GA. Theoretical study of AlH(2+)n (n=1-7) dications. Journal of Molecular Modeling. 12: 559-62. PMID 16523291 DOI: 10.1007/S00894-005-0094-7 |
0.477 |
|
| 2006 |
Rasul G, Prakash GK, Olah GA. Ab initio/GIAO-CCSD(T) study of propenoyl (H2C=CH-CO+) and isopentenoyl ((CH3)2C=CH-CO+) cations and their superelectrophilic protonated dications. The Journal of Physical Chemistry. A. 110: 1041-5. PMID 16420005 DOI: 10.1021/Jp058236I |
0.473 |
|
| 2006 |
Prakash GS, Wang Y, Hu J, Olah GA. Erratum to “Nucleophilic difluoromethylation and difluoromethylenation using bromodifluoromethyl phenyl sulfone” [J. Fluorine Chem. 126 (9–10) (2005) 1361–1367] Journal of Fluorine Chemistry. 127: 296. DOI: 10.1016/J.Jfluchem.2005.10.002 |
0.382 |
|
| 2006 |
Koltunov KY, Prakash GKS, Rasul G, Olah GA. Superacidic Activation of Maleimide and Phthalimide and Their Reactions with Cyclohexane and Arenes European Journal of Organic Chemistry. 2006: 4861-4866. DOI: 10.1002/Ejoc.200600486 |
0.334 |
|
| 2005 |
Rasul G, Prakash GK, Olah GA. Comparative ab initio study of the structures and stabilities of the ethane dication C2H6(2+) and its silicon analogues Si2H6(2+) and CSiH6(2+). The Journal of Physical Chemistry. A. 109: 798-801. PMID 16838949 DOI: 10.1021/Jp0404652 |
0.485 |
|
| 2005 |
Prakash GK, Desousa R, Olah GA. Electrophilic modification of polystyrene nanospheres. Journal of Nanoscience and Nanotechnology. 5: 397-403. PMID 15913245 DOI: 10.1166/Jnn.2005.128 |
0.785 |
|
| 2005 |
Miyazawa A, Tanaka K, Sakakura T, Tashiro M, Tashiro H, Prakash GK, Olah GA. Microwave-assisted direct transformation of amines to ketones using water as an oxygen source. Chemical Communications (Cambridge, England). 2104-6. PMID 15846414 DOI: 10.1039/B500541H |
0.494 |
|
| 2005 |
Prakash GK, Bae C, Rasul G, Olah GA. The question of C- vs. O-silylation of ketenes: electrophilic triethylsilylation of diphenylketene. Proceedings of the National Academy of Sciences of the United States of America. 102: 6251-4. PMID 15840718 DOI: 10.1073/Pnas.0501813102 |
0.616 |
|
| 2005 |
Olah GA, Mathew T, Goeppert A, Török B, Bucsi I, Li XY, Wang Q, Marinez ER, Batamack P, Aniszfeld R, Prakash GK. Ionic liquid and solid HF equivalent amine-poly(hydrogen fluoride) complexes effecting efficient environmentally friendly isobutane-isobutylene alkylation. Journal of the American Chemical Society. 127: 5964-9. PMID 15839696 DOI: 10.1021/Ja0424878 |
0.703 |
|
| 2005 |
Surya Prakash GK, Wang Y, Hu J, Olah GA. Nucleophilic difluoromethylation and difluoromethylenation using bromodifluoromethyl phenyl sulfone Journal of Fluorine Chemistry. 126: 1361-1367. DOI: 10.1016/J.Jfluchem.2005.07.011 |
0.445 |
|
| 2005 |
Prakash GS, Hu J, Wang Y, Olah GA. Fluoride-induced nucleophilic (phenylthio)difluoromethylation of carbonyl compounds with [difluoro(phenylthio)methyl]trimethylsilane (TMS–CF2SPh) Journal of Fluorine Chemistry. 126: 527-532. DOI: 10.1016/J.Jfluchem.2004.12.005 |
0.478 |
|
| 2005 |
Yan P, Batamack P, Prakash GKS, Olah GA. Gallium (III) triflate catalyzed dehydration of aldoximes Catalysis Letters. 101: 141-143. DOI: 10.1007/S10562-005-4880-8 |
0.483 |
|
| 2005 |
Linares-Palomino P, Prakash G, Olah G. Trifluoromethanesulfonic Acid Catalyzed Alkylation of Arenes with Methyl (2R)-Glycidate Helvetica Chimica Acta. 88: 1221-1225. DOI: 10.1002/Hlca.200590102 |
0.509 |
|
| 2005 |
Surya Prakash GK, Hu J, Wang Y, Olah GA. Convenient Synthesis of Difluoromethyl Alcohols from Both Enolizable and Non-Enolizable Carbonyl Compounds with Difluoromethyl Phenyl Sulfone European Journal of Organic Chemistry. 2005: 2218-2223. DOI: 10.1002/ejoc.200500101 |
0.43 |
|
| 2004 |
Rasul G, Olah GA, Prakash GK. Density functional theory study of adamantanediyl dications C10H142+ and protio-adamantyl dications C10H162+. Proceedings of the National Academy of Sciences of the United States of America. 101: 10868-71. PMID 15263093 DOI: 10.1073/Pnas.0404137101 |
0.486 |
|
| 2004 |
Olah GA, Klumpp DA. Superelectrophilic solvation. Accounts of Chemical Research. 37: 211-20. PMID 15096058 DOI: 10.1021/ar020102p |
0.563 |
|
| 2004 |
Prakash G, Hu J, Simon J, Bellew DR, Olah GA. Preparation of α,α-difluoroalkanesulfonic acids Journal of Fluorine Chemistry. 125: 595-601. DOI: 10.1016/j.jfluchem.2003.11.031 |
0.604 |
|
| 2004 |
Olah GA, Mathew T, Goeppert A, Rasul G, Prakash GKS, Esteves PM. Carbocationic rearrangement of pivaloyl cation and protonated pivalaldehyde in superacid medium: A novel solution equivalent of the McLafferty rearrangement Journal of the American Society For Mass Spectrometry. 15: 959-965. DOI: 10.1016/j.jasms.2004.05.002 |
0.556 |
|
| 2004 |
Warner WN, Hu J, Prakash GKS, Olah GA, Hogen-Esch TE. Mechanism of the anionic polymerization of methyl methacrylate initiated by tetramethylammonium-triphenylmethide in tetrahydrofuran Journal of Polymer Science, Part a: Polymer Chemistry. 42: 237-244. DOI: 10.1002/Pola.11019 |
0.445 |
|
| 2003 |
Rasul G, Olah GA, Prakash GK. Complexes of guanidinium ion (NH2)3C+ with super Lewis acidic XH4+(X = B and Al): comparison with XH3 complexes and protonated and methylated guanidinium dications. Inorganic Chemistry. 42: 8059-64. PMID 14632526 DOI: 10.1021/Ic030143X |
0.52 |
|
| 2003 |
Reddy VP, Rasul G, Prakash GK, Olah GA. 13C NMR/DFT/GIAO studies of phenylene bis(1,3-dioxolanium) dications and 2,4,6-triphenylene tris(1,3-dioxolanium) trication. The Journal of Organic Chemistry. 68: 3507-10. PMID 12713353 DOI: 10.1021/Jo020753Z |
0.504 |
|
| 2003 |
Ishimoto K, Mitoma Y, Nagashima S, Tashiro H, Prakash GK, Olah GA, Tashiro M. Reduction of carbonyl groups to the corresponding methylenes with Ni-Al alloy in water. Chemical Communications (Cambridge, England). 514-5. PMID 12638976 DOI: 10.1039/B211571A |
0.479 |
|
| 2003 |
Surya Prakash GK, Yan P, Török B, Olah GA. Superacidic trifluoromethanesulfonic acid-induced cycli-acyalkylation of aromatics Catalysis Letters. 87: 109-112. DOI: 10.1023/A:1023482904174 |
0.632 |
|
| 2003 |
Surya Prakash G, Yan P, Török B, Bucsi I, Tanaka M, Olah GA. Catalysis Letters. 85: 1-6. DOI: 10.1023/A:1022133227407 |
0.681 |
|
| 2003 |
Prakash GKS, Mandal M, Panja C, Mathew T, Olah GA. Preparation of TMS protected trifluoromethylated alcohols using trimethylamine N-oxide and trifluoromethyltrimethylsilane (TMSCHF3) Journal of Fluorine Chemistry. 123: 61-63. DOI: 10.1016/S0022-1139(03)00104-0 |
0.689 |
|
| 2003 |
Prakash GKS, Hu J, Alauddin MM, Conti PS, Olah GA. A general method of halogenation for synthesis of α-halodifluoromethyl ketones and [18F]-labeled trifluoromethyl ketones Journal of Fluorine Chemistry. 121: 239-243. DOI: 10.1016/S0022-1139(03)00039-3 |
0.436 |
|
| 2003 |
Prakash GKS, Alauddin MM, Hu J, Conti PS, Olah GA. Expedient synthesis of [18F]-labeled α-trifluoromethyl ketones Journal of Labelled Compounds and Radiopharmaceuticals. 46: 1087-1092. DOI: 10.1002/Jlcr.741 |
0.445 |
|
| 2002 |
Török B, Bucsi I, Prakash GK, Olah GA. Deprotection and cleavage of peptides bound to Merrifield resin by stable dimethyl ether-poly(hydrogen fluoride) (DMEPHF) complex. a new and convenient reagent for peptide chemistry. Chemical Communications (Cambridge, England). 2882-3. PMID 12478794 DOI: 10.1039/B206168F |
0.643 |
|
| 2002 |
Koltunov KY, Prakash GK, Rasul G, Olah GA. Superacidic activation of 1- and 3-isoquinolinols and their electrophilic reactions. The Journal of Organic Chemistry. 67: 8943-51. PMID 12467412 DOI: 10.1021/Jo0204855 |
0.548 |
|
| 2002 |
Rasul G, Prakash GK, Olah GA. DFT investigation of the tri(amino)amine N(NH(2))(3)(2+) and the tri(azido)amine N(N(3))(3)(2+) dications and related mixed amino(azido)ammonium ions (N(3))(x)N(NH(2))(4-x)(+) (x = 0-4)(1). Inorganic Chemistry. 41: 5589-92. PMID 12377058 DOI: 10.1021/Ic020358R |
0.488 |
|
| 2002 |
Rasul G, Prakash GK, Olah GA. Structures and stabilities of higher coordinate onium-boronium dications (X(+)BH(3)+ and X(+)BH(5)+; X = NH(3), PH(3), H(2)O, and H(2)S). Proceedings of the National Academy of Sciences of the United States of America. 99: 13387-90. PMID 12370438 DOI: 10.1073/Pnas.202476399 |
0.476 |
|
| 2002 |
Olah GA, Mathew T, Prakash GK. Nafion-H catalysed sulfonylation of aromatics with arene/alkenesulfonic acids for the preparation of sulfones1a. Chemical Communications (Cambridge, England). 1696-7. PMID 12240449 DOI: 10.1039/B104603A |
0.591 |
|
| 2002 |
Olah GA, Török B, Joschek JP, Bucsi I, Esteves PM, Rasul G, Surya Prakash GK. Efficient chemoselective carboxylation of aromatics to arylcarboxylic acids with a superelectrophilically activated carbon dioxide-Al(2)Cl(6)/Al system. Journal of the American Chemical Society. 124: 11379-91. PMID 12236753 DOI: 10.1021/Ja020787O |
0.732 |
|
| 2002 |
Prakash GK, Etzkorn M, Olah GA, Christe KO, Schneider S, Vij A. Triphenylmethyldifluoramine: a stable reagent for the synthesis of gem-bis(difluoramines). Chemical Communications (Cambridge, England). 1712-3. PMID 12196962 DOI: 10.1039/B203811K |
0.811 |
|
| 2002 |
Rasul G, Prakash GK, Olah GA. Ab initio/GIAO-MP2-calculated structures and (11)B-(13)C NMR chemical shift relationship in hypercoordinate onium-carbonium dications and isoelectronic onium-boronium cations. Proceedings of the National Academy of Sciences of the United States of America. 99: 9635-8. PMID 12119392 DOI: 10.1073/Pnas.142294599 |
0.496 |
|
| 2002 |
Bucsi I, Török B, Marco AI, Rasul G, Prakash GK, Olah GA. Stable dialkyl ether/poly(hydrogen fluoride) complexes: dimethyl ether/poly(hydrogen fluoride), a new, convenient, and effective fluorinating agent. Journal of the American Chemical Society. 124: 7728-36. PMID 12083926 DOI: 10.1021/Ja0124109 |
0.687 |
|
| 2002 |
Koltunov KY, Prakash GK, Rasul G, Olah GA. Reactions of 5-, 6-, 7-, 8-hydroxyquinolines and 5-hydroxyisoquinoline with benzene and cyclohexane in superacids. The Journal of Organic Chemistry. 67: 4330-6. PMID 12054971 DOI: 10.1021/Jo020099N |
0.576 |
|
| 2002 |
Prakash GKS, Mandal M, Schweizer S, Petasis NA, Olah GA. Stereoselective synthesis of anti-α-(difluoromethyl)-β-amino alcohols by boronic acid based three-component condensation. Stereoselective preparation of (2S,3R)-difluorothreonine Journal of Organic Chemistry. 67: 3718-3723. PMID 12027685 DOI: 10.1021/Jo011116W |
0.499 |
|
| 2002 |
Laali KK, Rasul G, Prakash GK, Olah GA. DFT study of substituted and benzannelated aryl cations: substituent dependency of singlet/triplet ratio. The Journal of Organic Chemistry. 67: 2913-8. PMID 11975546 DOI: 10.1021/Jo020084P |
0.512 |
|
| 2002 |
Prakash GK, Bae C, Rasul G, Olah GA. Preparation and NMR study of silylated carboxonium ions. The Journal of Organic Chemistry. 67: 1297-301. PMID 11846677 DOI: 10.1021/Jo0109974 |
0.637 |
|
| 2002 |
Olah G, Karpeles R, Narang S. Synthetic Methods and Reactions; 1071. Preparation of ω-Haloalkylcarboxylic Acids and Esters or Related Compounds from Lactones and Boron Trihalides Synthesis. 1982: 963-965. DOI: 10.1055/s-1982-30022 |
0.339 |
|
| 2002 |
Koltunov KY, Surya Prakash G, Rasul G, Olah GA. Superacid catalyzed reactions of 5-amino-1-naphthol with benzene and cyclohexane Tetrahedron. 58: 5423-5426. DOI: 10.1016/S0040-4020(02)00512-4 |
0.35 |
|
| 2002 |
Surya Prakash GK, Bae C, Kroll M, Olah GA. Synthesis of 1,3-bis(N,N-difluoroamino)adamantane: Addition of difluoramino radicals to 1,3-dehydroadamantane Journal of Fluorine Chemistry. 117: 103-105. DOI: 10.1016/S0022-1139(02)00155-0 |
0.473 |
|
| 2002 |
Mlostoń G, Prakash G, Olah G, Heimgartner H. Studies on Reactions of Thioketones with Trimethyl(trifluoromethyl)silane Catalyzed by Fluoride Ions Helvetica Chimica Acta. 85: 1644-1658. DOI: 10.1002/1522-2675(200206)85:6<1644::Aid-Hlca1644>3.0.Co;2-8 |
0.518 |
|
| 2001 |
Olah GA, Mathew T, Marinez ER, Esteves PM, Etzkorn M, Rasul G, Surya Prakash GK. Acid-catalyzed isomerization of pivalaldehyde to methyl isopropyl ketone via a reactive protosolvated carboxonium ion intermediate Journal of the American Chemical Society. 123: 11556-11561. PMID 11716708 DOI: 10.1021/Ja011253A |
0.794 |
|
| 2001 |
Prakash GKS, Mandal M, Olah GA. Asymmetric synthesis of trifluoromethylated allylic amines using α,β-unsaturated N-tert-butanesulfinimines Organic Letters. 3: 2847-2850. PMID 11529772 DOI: 10.1021/ol010134x |
0.499 |
|
| 2001 |
Prinzbach H, Reinbold J, Bertau M, Voss T, Martin HD, Mayer B, Heinze J, Neschchadin D, Gescheidt G, Prakash GK, Olah GA. sigma-Bishomoconjugation (sigma-Bishomoaromaticity) in 4C/3(2)e Cations-Scope and Limitations This project has been supported by the Deutsche Forschungsgemeinschaft, the Fonds der Chemischen Industrie, and BASF AG. We thank A. Kurscheidt and M. Lutterbeck for technical assistance, Dr. D. Hunkler and Dr. J. Wörth for NMR and MS measurements, and Prof. Dr. T. Bally for access to his (60)Co-gamma-irradiation equipment. Angewandte Chemie (International Ed. in English). 40: 911-914. PMID 11241644 DOI: 10.1002/1521-3773(20010302)40:5<911::AID-ANIE911>3.0.CO;2-B |
0.554 |
|
| 2001 |
Prakash GK, Mandal M, Olah GA. Stereoselective Nucleophilic Trifluoromethylation of N-(tert-Butylsulfinyl)imines by Using Trimethyl(trifluoromethyl)silane Support of our work by Loker Hydrocarbon Research Institute is gratefully acknowledged. Angewandte Chemie (International Ed. in English). 40: 589-590. PMID 11180380 DOI: 10.1002/1521-3773(20010202)40:3<589::AID-ANIE589>3.0.CO;2-9 |
0.628 |
|
| 2001 |
Surya Prakash G, Hu J, Olah GA. Facile preparation of di- and monofluoromethyl ketones from trifluoromethyl ketones via fluorinated enol silyl ethers Journal of Fluorine Chemistry. 112: 355-360. DOI: 10.1016/S0022-1139(01)00535-8 |
0.549 |
|
| 2001 |
Salzbrunn S, Simon J, Prakash GKS, Petasis NA, Olah GA. ChemInform Abstract: Considered Electrophilic Aromatic Substitution. Part 66. Regioselective Nitration of Arylboronic Acids. Cheminform. 32: no-no. DOI: 10.1002/chin.200105075 |
0.809 |
|
| 2001 |
Reinbold J, Bertau M, Voss T, Hunkler D, Knothe L, Prinzbach H, Neschchadin D, Gescheidt G, Mayer B, Martin HD, Heinze J, Prakash GKS, Olah GA. Secododecahedradienes - Syntheses, reactivity, in-plane homoconjugated 3C/2e cations, 4C/3e radical cations, and σ-bishomoaromatic 4C/2e dications? Helvetica Chimica Acta. 84: 1518-1560. DOI: 10.1002/1522-2675(20010613)84:6<1518::Aid-Hlca1518>3.0.Co;2-R |
0.384 |
|
| 2001 |
Prinzbach H, Reinbold J, Bertau M, Voss T, Martin H, Mayer B, Heinze J, Neschchadin D, Gescheidt G, Prakash GKS, Olah GA. σ-Bishomokonjugation (σ-Bishomoaromatizität) in 4C/3(2)e-Kationen - Voraussetzungen und Grenzen Angewandte Chemie. 113: 930-933. DOI: 10.1002/1521-3757(20010302)113:5<930::Aid-Ange930>3.0.Co;2-O |
0.323 |
|
| 2000 |
Rasul G, Prakash GK, Olah GA. Protonated and methylated dimethyl sulfoxide cations and dications. DFT/GIAO-MP2 NMR studies and comparison with experimental data. The Journal of Organic Chemistry. 65: 8786-9. PMID 11112605 DOI: 10.1021/jo001366x |
0.476 |
|
| 2000 |
Christe KO, Zhang X, Bau R, Hegge J, Olah GA, Prakash GKS, Sheehy JA. Relative abilities of fluorine and chlorine to stabilize carbenium ions: Crystal structures of two fluoro-substituted carbocations and of As2F11 - Journal of the American Chemical Society. 122: 481-487. DOI: 10.1021/Ja9933137 |
0.411 |
|
| 2000 |
Hwang JP, Surya Prakash G, Olah GA. Trifluoromethanesulfonic Acid Catalyzed Novel Friedel–Crafts Acylation of Aromatics with Methyl Benzoate Tetrahedron. 56: 7199-7203. DOI: 10.1016/S0040-4020(00)00633-5 |
0.317 |
|
| 2000 |
Prakash G, Tongco EC, Mathew T, Vankar YD, Olah GA. Preparation of 3-trifluoromethyl-2-cycloalkenones by the oxidative rearrangement of trifluoromethylated tertiary allylic alcohols with pyridinium chlorochromate Journal of Fluorine Chemistry. 101: 199-202. DOI: 10.1016/S0022-1139(99)00159-1 |
0.627 |
|
| 2000 |
Salzbrunn S, Rasul G, Surya Prakash GK, Olah GA. Structures of XH 4 + and XH 6 + (X = B, Al and Ga) Cations Journal of Molecular Modeling. 6: 213-216. DOI: 10.1007/S0089400060213 |
0.764 |
|
| 2000 |
Török B, Kiricsi I, Molnár Á, Olah GA. Acidity and Catalytic Activity of a Nafion-H/Silica Nanocomposite Catalyst Compared with a Silica-Supported Nafion Sample Journal of Catalysis. 193: 132-138. DOI: 10.1006/Jcat.2000.2869 |
0.526 |
|
| 2000 |
Mlostoń G, Celeda M, Prakash G, Olah G, Heimgartner H. Synthesis of Imidazole Derivatives Using 2-Unsubstituted 1H-Imidazole 3-Oxides Helvetica Chimica Acta. 83: 728-738. DOI: 10.1002/(Sici)1522-2675(20000412)83:4<728::Aid-Hlca728>3.0.Co;2-B |
0.528 |
|
| 1999 |
Olah GA, Prakash GK, Rasul G. Helionitronium trication (NO2He3+) and helionitrosonium trication (HeNO3+). Proceedings of the National Academy of Sciences of the United States of America. 96: 3494-5. PMID 10097063 DOI: 10.1073/Pnas.96.7.3494 |
0.455 |
|
| 1999 |
Prakash GS, Buchholz HA, Vaughan JF, Wang Q, Olah GA. Direct one step preparation and 13C-NMR spectroscopic characterization of alpha-ferrocenyl carbocations derived from ferrocene and carbonyl compounds in trifluoroacetic acid medium1a Journal of the Brazilian Chemical Society. 10: 313-316. DOI: 10.1590/S0103-50531999000400010 |
0.322 |
|
| 1999 |
Olah GA, Marinez E, Török B, Prakash GS. Catalysis Letters. 61: 105-110. DOI: 10.1023/A:1019001712172 |
0.571 |
|
| 1999 |
Klumpp DA, Fredrick S, Lau S, Jin KK, Bau R, Prakash GKS, Olah GA. Acid-catalyzed condensations of ninhydrin with aromatic compounds. Preparation of 2,2-diaryl-1,3-indanediones and 3- (diarylmethylene)isobenzofuranones Journal of Organic Chemistry. 64: 5152-5155. DOI: 10.1021/Jo990197H |
0.69 |
|
| 1999 |
Shamma T, Buchholz H, Prakash GS, Olah GA. Electrophilic Fluorination of Aromatics with Selectfluor™ and Trifluoromethanesulfonic Acid1 Israel Journal of Chemistry. 39: 207-210. DOI: 10.1002/Ijch.199900026 |
0.315 |
|
| 1998 |
Rasul G, Prakash GK, Olah GA. Calculated 11B-13C NMR chemical shift relationship in hypercoordinate methonium and boronium ions. Proceedings of the National Academy of Sciences of the United States of America. 95: 7257-9. PMID 9636135 DOI: 10.1073/Pnas.95.13.7257 |
0.497 |
|
| 1998 |
Olah GA, Rasul G, Burrichter A, Prakash GK. Attempted hydrogen-deuterium exchange of the protio-trimethyloxonium dication (CH3)3OH2+, study of methylating ability of (CH3)3O+ in superacids and theoretical investigations. Proceedings of the National Academy of Sciences of the United States of America. 95: 4099-101. PMID 9539696 DOI: 10.1073/Pnas.95.8.4099 |
0.503 |
|
| 1998 |
Klumpp DA, Yeung KY, Prakash GKS, Olah GA. Preparation of 3,3-Diaryloxindoles by superacid-induced condensations of isatins and aromatics with a combinatorial approach Journal of Organic Chemistry. 63: 4481-4484. DOI: 10.1021/Jo980588G |
0.672 |
|
| 1998 |
Pálinkó I, Török B, Surya Prakash G, Olah GA. Surface characterization of variously treated Nafion-H, Nafion-H supported on silica and Nafion-H silica nanocomposite catalysts by infrared microscopy Applied Catalysis a: General. 174: 147-153. DOI: 10.1016/S0926-860X(98)00167-7 |
0.469 |
|
| 1998 |
Rasul G, Prakash G, Olah GA. Structures of XH32+ (X=C, Si and Ge) and isoelectronic XH3+ (X=B, Al and Ga) Journal of Molecular Structure: Theochem. 455: 101-105. DOI: 10.1016/S0166-1280(98)00216-4 |
0.46 |
|
| 1998 |
Prakash G, Wang Q, Rasul G, Olah GA. Preparation, 29Si and 13C NMR and DFT/IGLO studies of silylcarboxonium ions1Considered as Onium Ions Part 48; for Part 47 see Ref. [1].12Dedicated to Professor Kenneth Wade on the occasion of his 65th birthday.2 Journal of Organometallic Chemistry. 550: 119-123. DOI: 10.1016/S0022-328X(97)00161-7 |
0.5 |
|
| 1998 |
Wiedemann J, Heiner T, Mloston G, Prakash G, Olah G. Direkte Synthese von Trifluormethylketonen aus Carbonsäureestern: Trifluormethylierung mit Trimethyl(trifluormethyl)silan Angewandte Chemie. 110: 880-881. DOI: 10.1002/(Sici)1521-3757(19980316)110:6<880::Aid-Ange880>3.0.Co;2-0 |
0.454 |
|
| 1997 |
Olah GA, Ramaiah P, Prakash GK. Electrophilic nitration of alkanes with nitronium hexafluorophosphate. Proceedings of the National Academy of Sciences of the United States of America. 94: 11783-5. PMID 11038587 DOI: 10.1073/Pnas.94.22.11783 |
0.521 |
|
| 1997 |
Rasul G, Prakash GK, Olah GA. Comparison of structures and energies of CH5(2+*) with CH4(+*) and their possible role in superacidic methane activation. Proceedings of the National Academy of Sciences of the United States of America. 94: 11159-62. PMID 11038583 DOI: 10.1073/Pnas.94.21.11159 |
0.51 |
|
| 1997 |
Klumpp DA, Baek DN, Prakash GKS, Olah GA. Preparation of Condensed Aromatics by Superacidic Dehydrative Cyclization of Aryl Pinacols and Epoxides1a The Journal of Organic Chemistry. 62: 6666-6671. DOI: 10.1021/Jo970293N |
0.598 |
|
| 1997 |
Surya Prakash GK, Struckhoff JJ, Weber K, Schreiber A, Bau R, Olah GA. Preparation and Characterization oftrans-1,4-Diazido-1,4-dinitrocyclohexane andexo-2,5-Diazido-endo-2,5-dinitronorbornane: Stable Geminal Azido−Nitro Compounds The Journal of Organic Chemistry. 62: 1872-1874. DOI: 10.1021/Jo9620268 |
0.43 |
|
| 1997 |
Gnann RZ, Wagner RI, Christe KO, Bau R, Olah GA, Wilson WW. Naked fluoride ion sources: Synthesis, characterization, and coupling reaction of 1-methylhexamethylenetetramine fluoride Journal of the American Chemical Society. 119: 112-115. DOI: 10.1021/Ja963168M |
0.5 |
|
| 1997 |
Yudin AK, Prakash GKS, Deffieux D, Bradley M, Bau R, Olah GA. Preparation of and fluoroalkylation with (chlorodifluoromethyl)trimethylsilane, difluorobis(trimethylsilyl)methane, and 1,1,2,2-tetrafluoro-1,2-bis(trimethylsilyl)ethane Journal of the American Chemical Society. 119: 1572-1581. DOI: 10.1021/Ja962990N |
0.64 |
|
| 1997 |
Olah GA, Burrichter A, Methew T, Vankar YD, Rasul G, Prakash GKS. Preparation, NMR, and Ab Initio/IGLO/GIAO-MP2 Study of the Elusive Protonated Fluroformic Acid and Fluorocarbonyl Cation Angewandte Chemie International Edition in English. 36: 1875-1877. DOI: 10.1002/Anie.199718751 |
0.52 |
|
| 1997 |
Olah GA, Burrichter A, Mathew T, Vankar YD, Rasul G, Prakash GKS. Synthese, NMR-Spektroskopie und eine ab-initio/IGLO/GIAO-MP2-Studie der protonierten Fluorameisensäure und des Fluorcarbonyl-Kations Angewandte Chemie. 109: 1958-1961. DOI: 10.1002/Ange.19971091723 |
0.452 |
|
| 1996 |
Buchholz HA, Prakash GK, Vaughan JF, Bau R, Olah GA. Two Types of New Polymeric Silver(I) Complexes from 1,4-Thioxane and Silver Triflate. Inorganic Chemistry. 35: 4076-4077. PMID 11666609 DOI: 10.1021/Ic960123D |
0.727 |
|
| 1996 |
Prakash GKS, Yudin AK, Deffieux D, Olah GA. Facile Preparation of (Trifluoromethyl)tributyltin and Transtrifluoromethylation of Disilyl Sulfides to the Corresponding Trifluoromethylsilanes1 Synlett. 1996: 151-153. DOI: 10.1055/S-1996-5355 |
0.531 |
|
| 1996 |
Olah GA, Batamack P, Deffieux D, Török B, Wang Q, Molnár Á, Surya Prakash G. Acidity dependence of the trifluoromethanesulfonic acid catalyzed isobutane-isobutylene alkylation modified with trifluoroacetic acid or water Applied Catalysis a: General. 146: 107-117. DOI: 10.1016/0926-860X(96)00045-2 |
0.525 |
|
| 1996 |
Olah GA, T�r�k B, Shamma T, T�r�k M, Prakash GKS. Solid acid (superacid) catalyzed regioselective adamantylation of substituted benzenes Catalysis Letters. 42: 5-13. DOI: 10.1007/Bf00814460 |
0.35 |
|
| 1995 |
Heagy MD, Olah GA, Prakash GKS, Lomas JS. 1H and 13C NMR Spectroscopic Investigation of Long-Lived Ortho- and Meta-Substituted Di-(1-adamantyl)benzyl Cations: Highly Deshielded Crowded Benzylic Cationic Centers The Journal of Organic Chemistry. 60: 7355-7356. DOI: 10.1021/Jo00127A050 |
0.664 |
|
| 1995 |
Heagy MD, Wang Q, Olah GA, Prakash GKS. Preparation and 13C NMR Spectroscopic Study of Disubstituted Adamantane-1,3-dimethyldiyl Dications The Journal of Organic Chemistry. 60: 7351-7354. DOI: 10.1021/Jo00127A049 |
0.643 |
|
| 1994 |
Lambert JB, Olah GA, Rasul G, Li XY, Buchholz HA, Sandford G, Prakash GK. Triethylsilyl cations. Science (New York, N.Y.). 263: 983-4. PMID 17758639 DOI: 10.1126/science.263.5149.983-a |
0.618 |
|
| 1994 |
Olah GA, Ramaiah P, Sandford G, Orlinkov A, Surya Prakash GK. Aluminum Chloride Catalyzed Nitration of Aromatics with Sodium Nitrate/Chlorotrimethylsilane Synthesis. 1994: 468-469. DOI: 10.1055/S-1994-25501 |
0.586 |
|
| 1994 |
Olah GA, Lee CS, Prakash GKS. Aromatic substitution. 64. Friedel-Crafts Alkylation of Aromatics with exo-2-Chloro- and 7-Chloronorbornane The Journal of Organic Chemistry. 59: 2590-2593. DOI: 10.1021/Jo00088A049 |
0.313 |
|
| 1994 |
Olah GA, Hartz N, Rasul G, Prakash GKS, Burkhart M, Lammertsma K. Protio-2-propyl Dication (Propane Dication, C3H82+): Hydrogen/Deuterium Exchange and Theoretical Study. Differentiation of Reactive Gitonic (Proximal) from Stable Distonic (Distant) Dications and the Protosolvolytic Activation of Carbocations Journal of the American Chemical Society. 116: 3187-3191. DOI: 10.1021/ja00087a003 |
0.42 |
|
| 1993 |
Olah GA, Wang Q, Sandford G, Oxyzoglou AB, Surya Prakash GK. Superelectrophilic Tscherniac Amidomethylation of Aromatics withN-Hydroxymethylphthalimide in Trifluoromethanesulfonic Acid Synthesis. 1993: 1077-1079. DOI: 10.1055/S-1993-26001 |
0.559 |
|
| 1993 |
Olah GA, Wang Q, Li X, Surya Prakash GK. Boron Trifluoride Monohydrate Catalyzed One-Flask 2,2,2-Trifluoro-1-(ethylthio)ethylation of Aromatics with Trifluoroacetaldehyde Hydrate and Ethanethiol1 Synlett. 1993: 32-34. DOI: 10.1055/S-1993-22336 |
0.354 |
|
| 1993 |
Olah GA, Heagy MD, Prakash GKS. Stable carbocations. 288. Carbon-13 NMR spectroscopic study of para-substituent effects in highly crowded .alpha.,.alpha.-di-1-adamantylbenzyl cations The Journal of Organic Chemistry. 58: 4851-4854. DOI: 10.1021/Jo00070A020 |
0.676 |
|
| 1993 |
Olah GA, Wang Q, Sandford G, Surya Prakash GK. Synthetic methods and reactions. 181. Iodination of deactivated aromatics with N-iodosuccinimide in trifluoromethanesulfonic acid (NIS-CF3SO3H) via in situ generated superelectrophilic iodine(I) trifluoromethanesulfonate The Journal of Organic Chemistry. 58: 3194-3195. DOI: 10.1021/Jo00063A052 |
0.579 |
|
| 1992 |
Olah GA, Laali KK, Sandford G. Comparison of the nitration of polyfluoronitrobenzenes by nitronium salts in superacidic and aprotic media: activation of the nitronium ion by protosolvation. Proceedings of the National Academy of Sciences of the United States of America. 89: 6670-2. PMID 11607308 DOI: 10.1073/Pnas.89.15.6670 |
0.51 |
|
| 1992 |
Olah GA, Wang Q, Trivedi NJ, Surya Prakash GK. Boron Trifluoride Monohydrate Catalyzed One-Flask Preparation of Sulfides from Carbonyl Compounds with Thiols and Triethylsilane Synthesis. 1992: 465-466. DOI: 10.1055/S-1992-26138 |
0.318 |
|
| 1991 |
Yamato T, Hideshima C, Prakash GKS, Olah GA. Organic reactions catalyzed by solid superacids. 5. Perfluorinated sulfonic acid resin (Nafion-H) catalyzed intramolecular Friedel-Crafts acylation The Journal of Organic Chemistry. 56: 3955-3957. DOI: 10.1021/Jo00012A033 |
0.374 |
|
| 1991 |
Yamato T, Hideshima C, Prakash GKS, Olah GA. Solid superacid catalyzed organic synthesis. 6. Perfluorinated resinsufonic acid (Nafion-H) catalyzed ring closure reaction of 2,2'-dihydroxybiphenyls. A preparative route to dibenzofurans The Journal of Organic Chemistry. 56: 3192-3194. DOI: 10.1021/Jo00009A051 |
0.317 |
|
| 1991 |
Olah GA, Wu AH. Synthetic methods and reactions. 159. Preparation of 1,2-diketones from nonenolizable aliphatic and aromatic acyl chlorides with diethyl 1-alkyl(aryl)-1-(trimethylsiloxy)-methanephosphonates The Journal of Organic Chemistry. 56: 902-904. DOI: 10.1021/jo00002a085 |
0.372 |
|
| 1990 |
Olah GA, Krishnamurti R, Surya Prakash GK. Preparation of 1,3-Functionalized Adamantanes by the Lewis Acid Catalyzed Electrophilic Cyclization of 7-Methylenebicyclo[3.3.1]nonan-3-one in the Presence of π- andN-Nucleophiles Synthesis. 1990: 646-648. DOI: 10.1055/S-1990-26967 |
0.373 |
|
| 1990 |
Olah GA, Farooq O, Farnia SMF, Wu AH. Aromatic substitution. 58. Boron tris(triflate)-catalyzed adamantylation of benzene and toluene with 1- and 2-haloadamantanes and adamantanoyl chlorides. Isomerization of phenyl- and tolyladamantanes The Journal of Organic Chemistry. 55: 1516-1522. DOI: 10.1021/jo00292a027 |
0.345 |
|
| 1990 |
Prakash G, Heiliger L, Olah GA. 13C and 19F NMR spectroscopic study of substituent effects in α,α-difluoroarylcarbeniumions [1] Journal of Fluorine Chemistry. 49: 33-41. DOI: 10.1016/S0022-1139(00)80361-9 |
0.507 |
|
| 1990 |
Yamato T, Hideshima C, Tashiro M, Surya Prakash GK, Olah GA. Nafion-H catalyzed condensation of acetophenone derivatives. A preparative route of 1,3,5-Triarylbenzenes [1] Catalysis Letters. 6: 341-344. DOI: 10.1007/Bf00764000 |
0.329 |
|
| 1990 |
OLAH GA, FAROOQ O, FARNIA SMF, WU A. ChemInform Abstract: Aromatic Substitution. Part 58. Boron Tris(triflate) Catalyzed Adamantylation of Benzene and Toluene with 1- and 2-Haloadamantanes and Adamantanoyl Chlorides. Isomerization of Phenyl- and Tolyladamantanes. Cheminform. 21. DOI: 10.1002/chin.199033147 |
0.31 |
|
| 1989 |
Olah GA, Prakash GKS, Donald P, Loker KB, Lammertsma K. Protonated (protosolvated) onium ions (onlum dications) Research On Chemical Intermediates. 12: 141-159. DOI: 10.1163/156856789X00104 |
0.543 |
|
| 1989 |
Olah GA, Wu AH, Farooq O. Synthetic methods and reactions. 137. Ionic chlorination (bromination) of alkanes and cycloalkanes with methylene chloride (bromide)/antimony pentafluoride The Journal of Organic Chemistry. 54: 1463-1465. DOI: 10.1021/jo00267a047 |
0.317 |
|
| 1989 |
Olah GA, Zadok E, Edler R, Adamson DH, Kasha W, Prakash GKS. Ionic polymerizations. 6. Friedel-Crafts dehydrohalogenative polymerization of acetyl and enolizable-substituted acetyl halides to polyketenes (poly(oxyacetylenes)) Journal of the American Chemical Society. 111: 9123-9124. DOI: 10.1021/Ja00207A031 |
0.559 |
|
| 1989 |
Prakash GKS, Fessner WD, Olah GA, Lutz G, Prinzbach H. Stable carbocations. Part 274. 2-Seco[1.1.1.1]pagodyl cation. Strong stabilization of a trivalent carbocation by carbon-carbon .sigma.-bond hyperconjugation Journal of the American Chemical Society. 111: 746-748. DOI: 10.1021/Ja00184A061 |
0.571 |
|
| 1989 |
OLAH GA, WU A, FAROOQ O. ChemInform Abstract: Synthetic Methods and Reactions. Part 138. Ultrasound-Assisted Preparation of Di-tert-butyl, Di-1,1′-adamantyl, and (1-Adamantyl)-tert-butyl Ketenes. Cheminform. 20. DOI: 10.1002/CHIN.198951121 |
0.324 |
|
| 1989 |
OLAH GA, WU A, FAROOQ O. ChemInform Abstract: Synthetic Methods and Reactions. Part 139. Intramolecular Dehydration of Dialkylacetic Acids and Trimethylsilylacetic Acid with Dicyclohexylcarbodiimide to the Corresponding Stable Ketenes (II). Cheminform. 20. DOI: 10.1002/CHIN.198951111 |
0.303 |
|
| 1989 |
OLAH GA, WEBER T, BELLEW DR, FAROOQ O. ChemInform Abstract: Synthetic Methods and Reactions. Part 142. One-Pot Preparation of Pentafluoroethanesulfonic (Pentflic) Acid by the Organolithium Pathway. Cheminform. 20. DOI: 10.1002/chin.198946133 |
0.333 |
|
| 1989 |
OLAH GA, ERNST TD. ChemInform Abstract: Aromatic Substitution. Part 55. Trimethylsilyl Azide/Triflic Acid, a Highly Efficient Electrophilic Aromatic Amination Reagent. Cheminform. 20. DOI: 10.1002/CHIN.198934122 |
0.335 |
|
| 1989 |
PRAKASH GKS, KRISHNAMURTHY VV, HERGES R, BAU R, YUAN H, OLAH GA, FESSNER W, PRINZBACH H. ChemInform Abstract: Stable Carbocations. Part 273. (1.1.1.1)- and (2.2.1.1)Pagodane Dications: Frozen Two-Electron Woodward-Hoffmann Transition-State Models. Cheminform. 20. DOI: 10.1002/chin.198909100 |
0.608 |
|
| 1988 |
Olah GA, Wu AH, Farooq O. Synthesis methods and reactions. Part 134. Preparation of 2-aryladamantanes and 3-aryldiamantanes by improved ionic hydrogenation of the corresponding tertiary alcohols with sodium borohydride-triflic acid or formic acid-triflic acid The Journal of Organic Chemistry. 53: 5143-5145. DOI: 10.1021/jo00256a043 |
0.303 |
|
| 1988 |
Prakash GKS, Krishnamurthy VV, Herges R, Bau R, Yuan H, Olah GA, Fessner WD, Prinzbach H. Stable carbocations. 273. [1.1.1.1]- and [2.2.1.1]Pagodane dications: frozen two-electron Woodward-Hoffmann transition-state models Journal of the American Chemical Society. 110: 7764-7772. DOI: 10.1021/Ja00231A029 |
0.688 |
|
| 1988 |
Olah GA, Farooq O, Farnia SMF, Bruce MR, Clouet FL, Morton PR, Prakash GKS, Stevens RC, Bau R, et al. .. Aluminum dichloride and dibromide. Preparation, spectroscopic (including matrix isolation) study, reactions, and role (together with alkyl(aryl)aluminum monohalides) in the preparation of organoaluminum compounds Journal of the American Chemical Society. 110: 3231-3238. DOI: 10.1021/Ja00218A037 |
0.599 |
|
| 1988 |
Olah GA, Prakash GKS, Marcelli M, Lammertsma K. The tetrahydridosulfonium dication, H4S2+: hydrogen-deuterium exchange of hydrogen sulfide (DH2S+) in fluorosulfuric acid-d:antimony pentafluoride and hydrogen sulfide (D2HS+) in fluorosulfuric acid:antimony pentafluoride and theoretical calculations The Journal of Physical Chemistry. 92: 878-880. DOI: 10.1021/J100315A005 |
0.458 |
|
| 1988 |
Sassaman MB, Surya Prakash GK, Olah GA, Donald P, Loker KB. Ionic Hydrogenation with Organosilanes under Acid-Free Conditions. Synthesis of Ethers, Alkoxysilanes, Thioethers, and Cyclic Ethers via rganosilyl Iodide and Triflate Catalyzed Reductions of Carbonyl Compounds and Their Derivatives1 1 Synthetic Methods and Reactions. 132. For Part 131, see: Prakash, G.K.S.; Olah, G.A. Proc.Ind.Natl.Acad.Sci., in press Tetrahedron. 44: 3771-3780. DOI: 10.1016/S0040-4020(01)86635-7 |
0.325 |
|
| 1988 |
Olah GA, Stephenson M, Shih JG, Krishnamurthy V, Prakash G. One bond 13C-19F coupling constant as a criterion for fluorine back donation to an electron deficient carbocationic center. application of the tool of increasing electron demand to α-fluorodiaryl carbenium ions [1] Journal of Fluorine Chemistry. 40: 319-329. DOI: 10.1016/S0022-1139(00)83071-7 |
0.494 |
|
| 1988 |
OLAH GA, PRAKASH GKS, MARCELLI M, LAMMERTSMA K. ChemInform Abstract: Onium Ions. Part 36. The Tetrahydridosulfonium Dication, H4S2+. Hydrogen-Deuterium Exchange of DH2S+ in FSO3D:SbF5 and D2HS+ in FSO3H:SbF5 and Theoretical Calculations. Cheminform. 19. DOI: 10.1002/chin.198821028 |
0.426 |
|
| 1987 |
Prakash GKS, Keyaniyan S, Aniszfeld R, Heiliger L, Olah GA, Stevens RC, Choi HK, Bau R. Organometallic chemistry. 22. Triphenylsilyl perchlorate revisited: silicon-29 and chlorine-35 NMR spectroscopy and x-ray crystallography showing covalent nature in both solution and the solid state. Difficulties in observing long-lived silyl cations in the condensed state Journal of the American Chemical Society. 109: 5123-5126. DOI: 10.1021/Ja00251A013 |
0.536 |
|
| 1987 |
Olah GA, Yamato T, Iyer PS, Trivedi NJ, Singh BP, Surya Prakash GK. Nafion-HR catalyzed baeyer-villiger oxidation and ritter reaction[1] Materials Chemistry and Physics. 17: 21-30. DOI: 10.1016/0254-0584(87)90046-0 |
0.302 |
|
| 1987 |
PRAKASH GKS, KEYANIYAN S, ANISZFELD R, HEILIGER L, OLAH GA, STEVENS RC, CHOI H, BAU R. ChemInform Abstract: Organometallic Chemistry. Part 22. Triphenylsilyl Perchlorate Revisited: 29Si and 35Cl NMR Spectroscopy and X-Ray Crystallography Showing Covalent Nature in Both Solution and the Solid State. Difficulties in Observing Long-Lived Silyl Cheminform. 18. DOI: 10.1002/chin.198749064 |
0.536 |
|
| 1986 |
Olah GA, Arvanaghi M, Ohannesian L. Synthetic Methods and Reactions; 1261. Trifluoromethanesulfonic Acid / Triethylsilane: A New Ionic Hydrogenation Reagent for the Reduction of Diaryl and Alkyl Aryl Ketones to Hydrocarbons Synthesis. 1986: 770-772. DOI: 10.1055/s-1986-31773 |
0.337 |
|
| 1986 |
Olah GA, Farooq O. Chemistry in superacids. 7. Superacid-catalyzed isomerization of endo- to exo-trimethylenenorbornane (tetrahydrodicyclopentadiene) and to adamantane The Journal of Organic Chemistry. 51: 5410-5413. DOI: 10.1021/jo00376a067 |
0.308 |
|
| 1986 |
Olah GA, Herges R, Laali K, Segal GA. Onium ions. 34. The methoxydiazonium ion: preparation, proton, carbon-13, and nitrogen-15 NMR and IR structural studies, theoretical calculations, and reaction with aromatics. Attempted preparation and the intermediacy of the hydroxydiazonium ion Journal of the American Chemical Society. 108: 2054-2057. DOI: 10.1021/Ja00268A054 |
0.466 |
|
| 1986 |
Olah GA, Prakash GK, Barzaghi M, Lammertsma K, Schlyer PVR, Pople JA. Considered as onium ions. 31. Protonated hydronium dication, H4O2+. Hydrogen-deuterium exchange of Dd2H17 O+ in HF-SbF5 and DH217O+ in DF-SbF5 and theoretical calculations Journal of the American Chemical Society. 108: 1032-1035. DOI: 10.1021/Ja00265A031 |
0.41 |
|
| 1986 |
Prakash GK, Krishnamurthy VV, Herges R, Bau R, Yuan H, Olah GA, Fessner WD, Prinzbach H. Stable carbocations. Part 267. Pagodane dication, a unique 2.pi.-aromatic cyclobutanoid system Journal of the American Chemical Society. 108: 836-838. DOI: 10.1021/Ja00264A046 |
0.727 |
|
| 1986 |
OLAH GA, HERGES R, LAALI K, SEGAL GA. ChemInform Abstract: Onium Ions. Part 34. The Methoxydiazonium Ion: Preparation,1H,13C, and15N NMR and IR Structural Studies, Theoretical Calculations, and Reaction with Aromatics. Chemischer Informationsdienst. 17. DOI: 10.1002/Chin.198632110 |
0.474 |
|
| 1986 |
OLAH GA, PRAKASH GKS, BARZAGHI M, LAMMERTSMA K, VON RAGUE SCHLEYER P, POPLE JA. ChemInform Abstract: Protonated Hydronium Dication, H4O2+. Hydrogen - Deuterium Exchange of D2H17O+in HF : SbF5and DH217O+in DF : SbF5and Theoretical Calculations. Chemischer Informationsdienst. 17. DOI: 10.1002/Chin.198626020 |
0.416 |
|
| 1986 |
PRAKASH GKS, KRISHNAMURTHY VV, HERGES R, BAU R, YUAN H, OLAH GA, FESSNER W, PRINZBACH H. ChemInform Abstract: Considered Stable Carbocations. Part 267. Pagodane Dication, a Unique Zn-Aromatic Cyclobutanoid System. Chemischer Informationsdienst. 17. DOI: 10.1002/Chin.198625072 |
0.714 |
|
| 1986 |
OLAH GA, GUPTA B, FARINA M, FELBERG JD, IP WM, HUSAIN A, KARPELES R, LAMMERTSMA K, MELHOTRA AK, TRIVEDI NJ. ChemInform Abstract: Electrophilic Reactions at Single Bonds. Part 20. Selective Monohalogenation of Methane Over Supported Acid or Platinum Metal Catalysts and Hydrolysis of Methyl Halides Over γ-Alumina-Supported Metal Oxide/Hydroxide Catalysts. Chemischer Informationsdienst. 17. DOI: 10.1002/Chin.198612104 |
0.529 |
|
| 1985 |
Olah GA, Gupta B, Felberg JD, Ip WM, Husain A, Karpeles R, Lammertsma K, Melhotra AK, Trivedi NJ. Electrophilic reactions at single bonds. 20. Selective monohalogenation of methane over supported acidic or platinum metal catalysts and hydrolysis of methyl halides over .gamma.-alumina-supported metal oxide/hydroxide catalysts. A feasible path for the oxidative conversion of methane into methyl alcohol/dimethyl ether Journal of the American Chemical Society. 107: 7097-7105. DOI: 10.1021/Ja00310A057 |
0.52 |
|
| 1985 |
Olah GA, Herges R, Felberg JD, Prakash GKS. Onium ions. 32. Intermediacy of the parent diazonium ion (protonated dinitrogen, N2+H) in the diazotization of ammonia and its derivatives with nitrosonium tetrafluoroborate (15NO+BF4-) giving 15N14N+ Journal of the American Chemical Society. 107: 5282-5283. DOI: 10.1021/Ja00304A047 |
0.409 |
|
| 1984 |
Olah GA, Doggweiler H, Felberg JD, Frohlich S, Grdina MJ, Karpeles R, Keumi T, Inaba S, Ip WM, Lammertsma K, Salem G, Tabor D. Onium Ylide chemistry. 1. Bifunctional acid-base-catalyzed conversion of heterosubstituted methanes into ethylene and derived hydrocarbons. The onium ylide mechanism of the C1 .fwdarw. C2 conversion Journal of the American Chemical Society. 106: 2143-2149. DOI: 10.1021/Ja00319A039 |
0.489 |
|
| 1983 |
Olah GA, Shih JG, Singh BP, Gupta BGB. Synthetic Methods and Reactions; 1101. Fluorination of 1-Haloadamantanes and -diamantane with Nitronium Tetrafluoroborate/Pyridine Polyhydrogen Fluoride or Sodium Nitrate/Pyridine Polyhydrogen Fluoride Synthesis. 1983: 713-715. DOI: 10.1055/s-1983-30479 |
0.311 |
|
| 1983 |
Olah GA, Felberg JD, Lammertsma K. Electrophilic reactions at single bonds. 18. Heterogeneous gas phase ethylation of methane with ethylene over solid superacids. A carbon-13 isotope tracer study Journal of the American Chemical Society. 105: 6529-6531. DOI: 10.1021/Ja00359A050 |
0.483 |
|
| 1983 |
Lammertsma K, Barzaghi M, Olah GA, Pople JA, Schleyer PVR, Simonetta M. Carbodications. 7. Structure and stability of diprotonated methane, CH62+ Journal of the American Chemical Society. 105: 5258-5263. DOI: 10.1021/Ja00354A013 |
0.375 |
|
| 1983 |
Lammertsma K, Barzaghi M, Olah GA, Pople JA, Kos AJ, Schleyer PvR. Carbodications. 6. The ethylene dication: a theoretical study of the ethylene dication (C2H42+) potential-energy surface Journal of the American Chemical Society. 105: 5252-5257. DOI: 10.1021/Ja00354A012 |
0.379 |
|
| 1983 |
MERTENS A, LAMMERTSMA K, ARVANAGHI M, OLAH GA. ChemInform Abstract: Onium Ions. Part 26. Aminodiazonium Ions: Preparation,1H,13C, and15N NMR Structural Studies, and Electrophilic Amination of Aromatics. Chemischer Informationsdienst. 14. DOI: 10.1002/chin.198348134 |
0.438 |
|
| 1982 |
Olah GA, Narang SC, Olah JA, Lammertsma K. Recent aspects of nitration: New preparative methods and mechanistic studies (A Review) Proceedings of the National Academy of Sciences. 79: 4487-4494. DOI: 10.1073/Pnas.79.14.4487 |
0.494 |
|
| 1982 |
Watkins MI, Ip WM, Olah GA, Bau R. Onium ions. 23. Structure of oxonium ions: an x-ray crystallographic study of triethyloxonium hexafluorophosphate and triphenyloxonium tetraphenylborate Journal of the American Chemical Society. 104: 2365-2372. DOI: 10.1021/Ja00373A006 |
0.374 |
|
| 1982 |
OLAH GA, ARVANAGHI M. ChemInform Abstract: SYNTHESIS METHODS AND REACTIONS. 102. ALDEHYDES BY FORMYLATION OF GRIGNARD AND ORGANOLITHIUM REAGENTS WITH N-FORMYLPIPERIDINE Chemischer Informationsdienst. 13. DOI: 10.1002/CHIN.198204127 |
0.307 |
|
| 1981 |
Olah GA, Fung AP, Malhotra R. Synthetic Methods and Reactions; 991. Preparation of Cyclic Ethers over Superacidic Perfluorinated Resinsulfonic Acid (Nafion-H) Catalyst Synthesis. 1981: 474-476. DOI: 10.1055/s-1981-29494 |
0.316 |
|
| 1981 |
Olah GA, Narang SC, Salem GF, Gupta BGB. Synthetic Methods and Reactions; 901. lodotrimethylsilane-Mediated Mild and Neutral Transesterification of Esters Synthesis. 1981: 142-143. DOI: 10.1055/s-1981-29367 |
0.317 |
|
| 1981 |
Olah GA, Narang SC, Field LD. Synthetic methods and reactions. 103. Preparation of alkyl iodides from alkyl fluorides and chlorides with iodotrimethylsilane or its in situ analogs The Journal of Organic Chemistry. 46: 3727-3728. DOI: 10.1021/jo00331a030 |
0.309 |
|
| 1981 |
Olah GA, Narang SC, Field LD, Karpeles R. Synthetic methods and reactions. 101. Reduction of sulfonic acids and sulfonyl derivatives to disulfides with iodide in the presence of boron halides The Journal of Organic Chemistry. 46: 2408-2410. DOI: 10.1021/jo00324a046 |
0.368 |
|
| 1981 |
Olah GA, Arvanaghi M. Aldehydes by Formylation of Grignard or Organolithium Reagents withN-Formylpiperidine Angewandte Chemie International Edition in English. 20: 878-879. DOI: 10.1002/anie.198108781 |
0.316 |
|
| 1980 |
Olah GA, Arvanaghi M, Vankar YD, Surya Prakash GK. Synthetic Methods and Reactions1; 89. Improved Transformation of Nitro Compounds into Carbonyl Compounds by Hydrogen Peroxide/Potassium Carbonate Synthesis. 1980: 662-663. DOI: 10.1055/S-1980-29165 |
0.475 |
|
| 1980 |
Olah GA, Narang SC, Garcia-Luna A. Synthetic Methods and Reactions; 881. Sulfuryl Chloride Fluoride, a Convenient Reagent for the Preparation of Amides from Carboxylic Acids and Primary Amines Under Mild Conditions Synthesis. 1980: 661-662. DOI: 10.1055/s-1980-29164 |
0.322 |
|
| 1980 |
Olah GA, Arvanaghi M, Vankar YD. Synthetic Methods and Reactions; 871. Deoxygenation of PyridineN-Oxides with Trimethyl(ethyl)amine-Sulfur Dioxide Complexes Synthesis. 1980: 660-661. DOI: 10.1055/S-1980-29163 |
0.547 |
|
| 1980 |
Olah G, Narang S, Salem G. Synthetic Methods and Reactions; 841. Mild Cleavage of EthanediylS,S-Acetals with Trichloroisocyanuric Acid Synthesis. 1980: 659-660. DOI: 10.1055/s-1980-29162 |
0.304 |
|
| 1980 |
Olah GA, Vankar YD, Arvanaghi M. Synthetic Methods and Reactions; 771. Dimethyl Sulfoxide/Chlorosulfonyl Isocyanate: An Extremely Mild Reagent for Oxidation of Alcohols to Carbonyl Compounds Synthesis. 1980: 141-142. DOI: 10.1055/S-1980-28951 |
0.526 |
|
| 1980 |
Olah GA, Vankar YD, Berrier AL. Synthetic Methods and Reactions; 721. Mild Fragmentative C-C Bond Cleavage of α-Hydroxyketoximes with Trifluoromethanesulfonic Anhydride, Trifluoroacetic Anhydride, or Trifluoromethanesulfonyl Chloride. Synthesis. 1980: 45-46. DOI: 10.1055/S-1980-28918 |
0.51 |
|
| 1980 |
Olah GA, Arvanaghi M, Vankar YD. Synthetic methods and reactions. 85. Reduction of .alpha.-halo ketones with sodium iodide/chlorotrimethylsilane The Journal of Organic Chemistry. 45: 3531-3532. DOI: 10.1021/Jo01305A040 |
0.548 |
|
| 1979 |
Olah GA, Vankar YD, Arvanaghi M. Synthetic Methods and Reactions; 76.1Deoxygenation of Sulfoxides with Sodium Iodide/Iodine/Trimethyl(ethyl)amine/Sulfur Dioxide or Sodium Iodide/Pyridine/Sulfur Trioxide Complexes Synthesis. 1979: 984-985. DOI: 10.1055/S-1979-28902 |
0.583 |
|
| 1979 |
Olah GA, Vankar YD, Arvanaghi M, Surya Prakash GK. Synthetic Methods and Reactions; 691. Dethioacetalization with Bromodimethylsulfonium Bromide Synthesis. 1979: 720-721. DOI: 10.1055/S-1979-28811 |
0.552 |
|
| 1979 |
Olah GA, Meidar D, Fung AP. Synthetic Methods and Reactions; 591. Catalysis of Diels-Alder Reactions by Nafion-H Perflunorinated Resinsulfonic Acid Synthesis. 1979: 270-271. DOI: 10.1055/s-1979-28641 |
0.317 |
|
| 1979 |
Olah GA, Vankar YD, Garcia-Luna A. Synthetic Methods and Reactions; 64.1Preparation of Nitrites from Amides and Aldoximes with Chlorosulfonyl Isocyanate, an Effective and Mild Dehydrating Agent Synthesis. 1979: 227-228. DOI: 10.1055/S-1979-28632 |
0.556 |
|
| 1979 |
Olah GA, Vankar YD, Surya Prakash GK. Synthetic Methods and Reactions; 611. Oxidative Cleavage of Ketoximes and Tosylhydrazones with Aqueous Bromine Synthesis. 1979: 113-114. DOI: 10.1055/S-1979-28578 |
0.528 |
|
| 1979 |
Olah GA, Keumi T. Synthetic Methods and Reactions; 601. Improved One-Step Conversion of Aldehydes into Nitriles with Hydroxylamine in Formic Acid Solution Synthesis. 1979: 112-113. DOI: 10.1055/s-1979-28577 |
0.312 |
|
| 1979 |
Olah GA, Vankar YD, Fung AP. Synthetic Methods and Reactions; 571. Reduction of α-Haloketones with Sodium Iodide/Trimethyl (ethyl)-amine/Sulfur Dioxide or Pyridine/Sulfur Trioxide Complexes Synthesis. 1979: 59-61. DOI: 10.1055/S-1979-28557 |
0.565 |
|
| 1979 |
Olah GA, Vankar YD, Balaram Gupta BG. Synthetic Methods and Reactions; 551. Novel Conversion of Primary Aliphatic and Arylaliphatic Nitro Compounds into Nitriles with Trimethyl(ethyl)amine/ Sulfur Dioxide Complexes or Hexamethylphosphorous Triamide Synthesis. 1979: 36-37. DOI: 10.1055/S-1979-28542 |
0.577 |
|
| 1979 |
Olah GA, Welch JT, Vankar YD, Nojima M, Kerekes I, Olah JA. Synthetic methods and reactions. 63. Pyridinium poly(hydrogen fluoride) (30% pyridine-70% hydrogen fluoride): a convenient reagent for organic fluorination reactions The Journal of Organic Chemistry. 44: 3872-3881. DOI: 10.1021/Jo01336A027 |
0.559 |
|
| 1979 |
Lammertsma K, Olah GA, Berke CM, Streitwieser A. 1,4,5,8-Tetramethylnaphthalene dication and related radical cations Journal of the American Chemical Society. 101: 6658-6659. DOI: 10.1021/ja00516a028 |
0.403 |
|
| 1979 |
Olah GA, Vankar YD, Arvanaghi M. Synthetic methods are reactions. 73. Conversion of epoxides and enamines into α-haloketones with halodimethylsulfonium halides Tetrahedron Letters. 20: 3653-3656. DOI: 10.1016/S0040-4039(01)95488-7 |
0.539 |
|
| 1979 |
OLAH GA, ARVANAGHI M, VANKAR YD. ChemInform Abstract: SYNTHETIC METHODS AND REACTIONS; 70. OXIDATION OF THIOLS TO DISULFIDES WITH BROMODIMETHYLSULFONIUM BROMIDE Chemischer Informationsdienst. 10. DOI: 10.1002/chin.197952157 |
0.533 |
|
| 1979 |
OLAH GA, VANKAR YD, ARVANAGHI M, SOMMER J. ChemInform Abstract: FORMIC ACID ANHYDRIDE Chemischer Informationsdienst. 10. DOI: 10.1002/Chin.197949148 |
0.499 |
|
| 1979 |
OLAH GA, MEIDAR D. ChemInform Abstract: HETEROGENEOUS CATALYSIS BY SOLID SUPERACIDS. PART 12. FRIEDEL CRAFTS ALKYLATION OF BENZENE, ALKYLBENZENES AND HALOBENZENES WITH ALKYL HALIDES OVER A PERFLUORINATED RESINSULFONIC ACID (NAFION-H) CATALYST Chemischer Informationsdienst. 10. DOI: 10.1002/CHIN.197929161 |
0.315 |
|
| 1978 |
OLAH GA, VANKAR YD. Synthetic Methods and Reactions; 521. Preparation of Nitriles from Aldoximes via Dehydration with Trimethylamine/Sulfur Dioxide Complex Synthesis. 1978: 702-703. DOI: 10.1055/S-1978-24867 |
0.569 |
|
| 1978 |
OLAH GA, GUPTA BGB, NARANG SC. Synthetic Methods and Reactions; 451. Deoxygenation of Sulfoxides with Triphenylphosphine/Iodine/Sodium Iodide Reagent Synthesis. 1978: 137-138. DOI: 10.1055/s-1978-24688 |
0.303 |
|
| 1978 |
Olah GA, Donovan DJ, Prakash G. The α, 1-dimethylcyclopropylcarbinyl cation Tetrahedron Letters. 19: 4779-4782. DOI: 10.1016/S0040-4039(01)85729-4 |
0.463 |
|
| 1978 |
Olah GA, Meidar D. Synthetic Methods and Reactions.43. Preparation of Fluorohydrins from Epoxides with Pyridinium Poly-hydrogen Fluoride Israel Journal of Chemistry. 17: 148-149. DOI: 10.1002/ijch.197800022 |
0.308 |
|
| 1978 |
Olah GA, Donovan DJ, Lin HC, Mayr H, Andreozzi P, Klopman G. Onium ions. 18. Static protonated and exchanging diprotonated ambivalent heteroorganic systems: hydroxylamines, acetone oxime, and dimethyl sulfoxide The Journal of Organic Chemistry. 43: 2268-2272. DOI: 10.1002/Chin.197842125 |
0.346 |
|
| 1978 |
Olah GA, Asensio G, Mayr H, Schleyer PvR. Carbanions. 3. Nuclear magnetic resonance spectroscopic and theoretical study of homoaromaticity in cyclohexadienyl anions Journal of the American Chemical Society. 100: 4347-4352. DOI: 10.1002/Chin.197842064 |
0.317 |
|
| 1978 |
Olah GA, Asensio G, Mayr H. Stable carbocations. 211. 1-Phenylallyl cations and their rearrangement to indanyl cations in superacidic media The Journal of Organic Chemistry. 43: 1518-1520. DOI: 10.1002/Chin.197835132 |
0.374 |
|
| 1977 |
OLAH GA, PARKER DG, YONEDA N. ChemInform Abstract: OXYFUNCTIONALIZATION OF HYDROCARBONS. 5. PROTOLYTIC CLEAVAGE-REARRANGEMENT REACTIONS OF TERTIARY ALKYL (ARYLALKYL) PEROXY ESTERS IN SUPERACIDS Chemischer Informationsdienst. 8: no-no. DOI: 10.1002/chin.197720144 |
0.306 |
|
| 1977 |
Mayr H, Olah GA. Stable carbocations. 202. Ring closure reactions of allyl to cyclopropylcarbinyl cations Journal of the American Chemical Society. 99: 510-513. DOI: 10.1002/Chin.197715122 |
0.491 |
|
| 1977 |
HO T, OLAH GA. ChemInform Abstract: SYNTHETIC METHODS AND REACTIONS. 29. SPLITTING OF ESTERS AND ETHERS WITH IODOTRIMETHYLSILANE Chemischer Informationsdienst. 8: no-no. DOI: 10.1002/CHIN.197712102 |
0.325 |
|
| 1976 |
Olah GA, Mayr H. Carbanions. II. Carbon-13 nuclear magnetic resonance study of Meisenheimer complexes and their charge distribution pattern The Journal of Organic Chemistry. 41: 3448-3451. DOI: 10.1021/Jo00883A028 |
0.332 |
|
| 1976 |
Olah G, Mayr H. Stable Carbocations. 198. Formation of Allyl Cations via Protonation of Alkynes in Magic Acid Solution. Evidence for 1,2-Hydrogen and Alkyl Shifts in the Intermediate Vinyl Cations Journal of the American Chemical Society. 98: 7333-7340. DOI: 10.1021/Ja00439A600 |
0.466 |
|
| 1976 |
Olah GA, Parker DG, Yoneda N, Pelizza F. Oxyfunctionalization of hydrocarbons. 1. Protolytic cleavage-rearrangement reactions of tertiary alkyl hydroperoxides with magic acid Journal of the American Chemical Society. 98: 2245-2250. DOI: 10.1021/ja00424a038 |
0.359 |
|
| 1976 |
OLAH GA, PARKER DG, YONEDA N, PELIZZA F. ChemInform Abstract: OXYFUNCTIONALIZATION OF HYDROCARBONS. 1. PROTOLYTIC CLEAVAGE-REARRANGEMENT REACTIONS OF TERTIARY ALKYL HYDROPEROXIDES WITH MAGIC ACID Chemischer Informationsdienst. 7: no-no. DOI: 10.1002/chin.197627132 |
0.324 |
|
| 1975 |
Olah GA, Schilling P, Staral JS, Halpern Y, Olah JA. Electrophilic reactions at single bonds. XIV. Anhydrous fluoroantimonic acid catalyzed alkylation of benzene with alkanes and alkane-alkene and alkane-alkylbenzene mixtures Journal of the American Chemical Society. 97: 6807-6810. DOI: 10.1021/ja00856a034 |
0.307 |
|
| 1974 |
Olah GA, Nishimura J, Yamada Y. Friedel-Crafts chemistry. IX. Aluminum chloride and antimony pentafluoride catalyzed desulfonylative alkylation of aromatics with isopropyl, tert-butyl, and benzylsulfonyl halides and with related sulfones The Journal of Organic Chemistry. 39: 2430-2431. DOI: 10.1021/jo00930a027 |
0.309 |
|
| 1974 |
OLAH GA, NISHIMURA J. ChemInform Abstract: AROMATIC SUBSTITUTION PART 36, ALUMINIUM TRICHLORIDE AND ANTIMONY PENTAFLUORIDE CATALYZED FRIEDEL-CRAFTS ALKYLATION OF BENZENE AND TOLUENE WITH ESTERS AND HALOESTERS Chemischer Informationsdienst. 5: no-no. DOI: 10.1002/chin.197424194 |
0.314 |
|
| 1965 |
Olah GA, Lapierre JC, Carlson CG. Friedel-Crafts Isomerization. XI.1Aluminum Chloride Catalyzed Isomerization of the Haloethylbenzenes The Journal of Organic Chemistry. 30: 541-544. DOI: 10.1021/jo01013a059 |
0.316 |
|
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