| Year |
Citation |
Score |
| 2024 |
Saini N, Khajuria C, Biswas RG, Singh VK. Organocatalytic Asymmetric Cascade Michael-Acyl Transfer Reaction between 2-Fluoro-1,3-diketones and 2-Hydroxynitrostyrenes. The Journal of Organic Chemistry. 89: 1264-1274. PMID 38175926 DOI: 10.1021/acs.joc.3c02512 |
0.455 |
|
| 2023 |
Manna A, Rohilla S, Singh VK. Enantioselective Synthesis of Thiazolopyran Derivatives via a Direct Vinylogous Michael--Michael Sequence. Organic Letters. 26: 280-285. PMID 38127653 DOI: 10.1021/acs.orglett.3c03971 |
0.45 |
|
| 2023 |
Khan ZA, Singh VK. Synthesis of Spiroisoindolinones via Ru(II)-Catalyzed Spiroannulation of -Acyl Ketimines with Aryl Isocyanates/Isothiocyanates through Aromatic C-H Bond Activation. The Journal of Organic Chemistry. 88: 17438-17449. PMID 38053308 DOI: 10.1021/acs.joc.3c02275 |
0.308 |
|
| 2023 |
Manna A, Joshi H, Singh VK. Organocatalytic Asymmetric Direct Vinylogous Michael Initiated Ring Closure Reaction of 4-Nitroisoxazole Derivatives to 3-Isopropylidene Oxindoles. The Journal of Organic Chemistry. 88: 15937-15946. PMID 37885257 DOI: 10.1021/acs.joc.3c02125 |
0.85 |
|
| 2023 |
Subba P, Sadhu MM, Singh VK. Chiral Phosphoric Acid-Catalyzed Asymmetric Friedel-Crafts Addition of Indolizine to Cyclic -Sulfonyl Imine. The Journal of Organic Chemistry. 88: 14676-14687. PMID 37787981 DOI: 10.1021/acs.joc.3c01686 |
0.862 |
|
| 2023 |
Ranjan Sahoo S, Gupta K, Singh VK. Enantioselective Dearomative [4+2] Cycloaddition Reaction of 1-Naphthols with In-Situ Generated ortho-Quinone Methides. Chemistry (Weinheim An Der Bergstrasse, Germany). 29: e202302707. PMID 37708402 DOI: 10.1002/chem.202302707 |
0.463 |
|
| 2023 |
Choudhary K, Biswas RG, Manna A, Singh VK. Kinetic Resolution of Electron-Deficient Bromohydrins via Copper(II)-Catalyzed C-C Bond Cleavage. The Journal of Organic Chemistry. 88: 12041-12053. PMID 37533192 DOI: 10.1021/acs.joc.3c01368 |
0.366 |
|
| 2023 |
Yadav A, Gill M, Singh VK. Central-to-Axial Chirality: Asymmetric Organocatalytic Synthesis of Axially Chiral Chalcones via Exocyclic Dihydronaphthalenes. Organic Letters. 25: 4813-4818. PMID 37358288 DOI: 10.1021/acs.orglett.3c01413 |
0.412 |
|
| 2023 |
Rohilla S, Shah S, Singh VK. Copper-Catalyzed Asymmetric Propargylic [3 + 2] Cycloaddition: Synthesis of Enantioenriched Dihydrofuro[3,2-]coumarins and its Quinolinone and Thiocoumarin Analogues. Organic Letters. PMID 37192010 DOI: 10.1021/acs.orglett.3c01198 |
0.413 |
|
| 2023 |
Sahoo SR, Singh VK. Brønsted Acid Catalyzed Friedel-Crafts Alkylation of Naphthols with In Situ Generated Naphthol-Derived -Quinone Methides: Synthesis of Chiral and Achiral Xanthene Derivatives. The Journal of Organic Chemistry. 88: 3159-3172. PMID 36866580 DOI: 10.1021/acs.joc.2c02939 |
0.444 |
|
| 2022 |
Manna A, Joshi H, Singh VK. Asymmetric Synthesis of Spiro-3,3'-cyclopropyl Oxindoles via Vinylogous Michael Initiated Ring Closure Reaction. The Journal of Organic Chemistry. PMID 36468901 DOI: 10.1021/acs.joc.2c02402 |
0.851 |
|
| 2022 |
Sadhu MM, Khajuria C, Singh VK. A Brønsted acid-catalyzed thioacid addition to -generated aldimine for the synthesis of isoindolinones with the ,-acetal framework. Organic & Biomolecular Chemistry. PMID 36349811 DOI: 10.1039/d2ob01532c |
0.859 |
|
| 2022 |
Gill M, Das A, Singh VK. Asymmetric Umpolung (3+2) Cycloadditions of Iminoesters with α,β-Unsaturated-2-acyl Imidazoles for the Synthesis of Substituted Pyrrolidines. Organic Letters. PMID 35904565 DOI: 10.1021/acs.orglett.2c01438 |
0.537 |
|
| 2022 |
Shukla K, Mahto P, Singh VK. Enantioselective synthesis of tetrahydrofuran spirooxindoles domino oxa-Michael/Michael addition reaction using a bifunctional squaramide catalyst. Organic & Biomolecular Chemistry. PMID 35521781 DOI: 10.1039/d2ob00633b |
0.484 |
|
| 2022 |
Unhale RA, Sadhu MM, Singh VK. Chiral Brønsted Acid Catalyzed Enantioselective Synthesis of Spiro-Isoindolinone-Indolines via Formal [3 + 2] Cycloaddition. Organic Letters. 24: 3319-3324. PMID 35507765 DOI: 10.1021/acs.orglett.2c00748 |
0.864 |
|
| 2021 |
Sadhu MM, Ray SK, Unhale RA, Singh VK. Brønsted acid-catalyzed enantioselective addition of 1,3-diones to generated -acyl ketimines. Organic & Biomolecular Chemistry. PMID 34904614 DOI: 10.1039/d1ob02162a |
0.842 |
|
| 2021 |
Das A, Joshi H, Singh VK. Asymmetric α-Functionalization of 2-Alkyl Azaarenes: Synthesis of Tertiary Fluorides Having Vicinal Stereogenic Centers. Organic Letters. PMID 34870439 DOI: 10.1021/acs.orglett.1c03626 |
0.845 |
|
| 2021 |
Das BG, Shah S, Das A, Singh VK. Cu-Catalyzed Chemodivergent, Stereoselective Propargylic Dearomatization and Etherification of 2-Naphthols. Organic Letters. PMID 34374540 DOI: 10.1021/acs.orglett.1c02027 |
0.41 |
|
| 2021 |
Biswas RG, Ray SK, Unhale RA, Singh VK. Organocatalytic Asymmetric Cascade Michael-acyl Transfer Reaction between 2-Fluoro-1,3-diketones and Unsaturated Thiazolones: Access to Fluorinated 4-Acyloxy Thiazoles. Organic Letters. PMID 34351776 DOI: 10.1021/acs.orglett.1c02313 |
0.864 |
|
| 2021 |
Biswas RG, Ray SK, Kannaujiya VK, Unhale RA, Singh VK. Cu(I)-Catalyzed asymmetric -selective synthesis of substituted pyrrolidines a 1,3-dipolar cycloaddition reaction. Organic & Biomolecular Chemistry. PMID 33982725 DOI: 10.1039/d1ob00494h |
0.856 |
|
| 2020 |
Joshi H, Yadav A, Das A, Singh VK. Organocatalytic Asymmetric Hetero-Diels-Alder Reaction of in-situ Generated Dienes: Access to α,β-Unsaturated δ-Lactones Featuring CF3-Substituted Quaternary Stereocenter. The Journal of Organic Chemistry. PMID 31940437 DOI: 10.1021/Acs.Joc.9B03076 |
0.865 |
|
| 2020 |
Jha RK, Rout S, Joshi H, Das A, Singh VK. An enantioselective sulfa-Michael addition of alkyl thiols to α,β-unsaturated 2-acyl imidazoles catalyzed by a bifunctional squaramide Tetrahedron. 76: 130800. DOI: 10.1016/J.Tet.2019.130800 |
0.562 |
|
| 2019 |
Das DK, Kannaujiya VK, Sadhu MM, Ray SK, Singh VK. BF3·OEt2 Catalyzed Vinyl Azides Addition to in situ Generated N-Acyl Iminium Salts: Synthesis of 3-Oxoisoindoline-1-acetamides. The Journal of Organic Chemistry. PMID 31741383 DOI: 10.1021/Acs.Joc.9B02127 |
0.848 |
|
| 2019 |
Mahto P, Rana NK, Shukla K, Das BG, Joshi H, Singh VK. Asymmetric Multifunctional Modular Organocatalysis: One-Pot Direct Strategy to Enantiopure α,β-Disubstituted γ-Butyrolactones. Organic Letters. PMID 31322898 DOI: 10.1021/Acs.Orglett.9B02094 |
0.843 |
|
| 2019 |
Das BG, Shah S, Singh VK. Copper Catalyzed One-Pot Three-Component Imination-Alkynylation-aza-Michael Sequence: Enantio- and Diastereoselective Syntheses of 1,3-Disubstituted Isoindolines and Tetrahydroisoquinolines. Organic Letters. PMID 31247736 DOI: 10.1021/Acs.Orglett.9B01507 |
0.486 |
|
| 2019 |
Dhanasekaran S, Kannaujiya VK, Biswas RG, Singh VK. Enantioselective A3-Coupling Reaction Employing Chiral CuI-iPrpyboxdiPh/N-Boc-(L)-Proline Complex under Cooperative Catalysis: Application in the Synthesis of (Indol-2-yl)methanamines. The Journal of Organic Chemistry. PMID 30789265 DOI: 10.1021/Acs.Joc.8B03225 |
0.555 |
|
| 2019 |
Ray SK, Sadhu MM, Biswas RG, Unhale RA, Singh VK. A General Catalytic Route to Enantioenriched Isoindolinones and Phthalides: Application in the Synthesis of ( S)-PD 172938. Organic Letters. PMID 30624068 DOI: 10.1021/Acs.Orglett.8B03597 |
0.832 |
|
| 2019 |
Shukla K, Shah S, Rana NK, Singh VK. An efficient and highly diastereoselective synthesis of carbocyclic spiropyrazolones via one-pot sequential dual organo-silver catalyzed Michael-hydroalkylation reactions Tetrahedron Letters. 60: 92-97. DOI: 10.1016/J.Tetlet.2018.11.064 |
0.826 |
|
| 2018 |
Rout S, Joshi H, Singh VK. Correction to "Asymmetric Construction of Remote Vicinal Quaternary and Tertiary Stereocenters via Direct Doubly Vinylogous Michael Addition". Organic Letters. PMID 30382702 DOI: 10.1021/Acs.Orglett.8B03370 |
0.799 |
|
| 2018 |
Rout S, Das A, Singh VK. Metal-Controlled Switching of Enantioselectivity in Mukaiyama-Michael Reaction of α,β-Unsaturated 2-Acyl Imidazoles Catalyzed by Chiral Metal-Pybox Complexes. The Journal of Organic Chemistry. PMID 29658718 DOI: 10.1021/Acs.Joc.8B00399 |
0.846 |
|
| 2018 |
Rout S, Joshi H, Singh VK. Asymmetric Construction of Remote Vicinal Quaternary and Tertiary Stereocenters via Direct Doubly Vinylogous Michael Addition. Organic Letters. PMID 29583013 DOI: 10.1021/Acs.Orglett.8B00493 |
0.831 |
|
| 2018 |
Unhale RA, Sadhu MM, Ray SK, Biswas RG, Singh VK. A chiral Brønsted acid-catalyzed highly enantioselective Mannich-type reaction of α-diazo esters with in situ generated N-acyl ketimines. Chemical Communications (Cambridge, England). PMID 29564434 DOI: 10.1039/C8Cc01436A |
0.857 |
|
| 2018 |
Ray SK, Biswas RG, Suneja A, Sadhu MM, Singh VK. (R)-DM-SEGPHOS-Ag(I) Catalyzed Enantioselective Synthesis of Pyrrolidines and Pyrrolizidines via (1,3)- and Double (1,3)-Dipolar Cycloaddition Reactions. The Journal of Organic Chemistry. PMID 29364672 DOI: 10.1021/Acs.Joc.7B03185 |
0.853 |
|
| 2018 |
Rana NK, Shukla K, Mahto P, Jha RK, Singh VK. A facile and highly diastereoselective synthesis of carbocyclic spiro-pyrazolones via DABCO catalyzed Michael-Michael domino reaction Tetrahedron. 74: 5270-5279. DOI: 10.1016/J.Tet.2018.02.002 |
0.843 |
|
| 2017 |
Kayet A, Singh VK. A one-pot synthesis of 2,2'-disubstituted diindolylmethanes (DIMs) via a sequential Sonogashira coupling and cycloisomerization/C3-functionalization of 2-iodoanilines. Organic & Biomolecular Chemistry. PMID 28792550 DOI: 10.1039/C7Ob01701D |
0.442 |
|
| 2017 |
Rout S, Das A, Singh VK. An asymmetric vinylogous Mukaiyama-Michael reaction of α,β-unsaturated 2-acyl imidazoles catalyzed by chiral Sc(iii)- or Er(iii)-pybox complexes. Chemical Communications (Cambridge, England). PMID 28435957 DOI: 10.1039/C7Cc01763D |
0.852 |
|
| 2017 |
Suneja A, Unhale RA, Singh VK. Enantioselective Hydrophosphonylation of in Situ Generated N-Acyl Ketimines Catalyzed by BINOL-Derived Phosphoric Acid. Organic Letters. PMID 28075602 DOI: 10.1021/acs.orglett.6b03623 |
0.854 |
|
| 2017 |
Rana NK, Jha RK, Joshi H, Singh VK. Enantioselective access to tetrahydropyrano[2,3- c ]pyrazoles via an organocatalytic domino Michael-hydroalkoxylation reaction Tetrahedron Letters. 58: 2135-2139. DOI: 10.1016/J.Tetlet.2017.04.059 |
0.821 |
|
| 2017 |
Saha P, Ray SK, Singh VK. Copper-catalyzed Pummerer type reaction of α -thio aryl/heteroarylacetates: Synthesis of aryl/heteroaryl α -keto esters Tetrahedron Letters. 58: 1765-1769. DOI: 10.1016/j.tetlet.2017.03.069 |
0.7 |
|
| 2017 |
Unhale RA, Molleti N, Rana NK, Dhanasekaran S, Bhandary S, Singh VK. Chiral phosphoric acid catalyzed enantioselective addition of thiols to in situ generated ketimines: Synthesis of N , S -ketals Tetrahedron Letters. 58: 145-151. DOI: 10.1016/J.Tetlet.2016.11.114 |
0.843 |
|
| 2016 |
Rana NK, Joshi H, Jha RK, Singh VK. Enantioselective Tandem Oxidation/Michael-Aldol Approaches to Tetra-Substituted Cyclohexanes. Chemistry (Weinheim An Der Bergstrasse, Germany). PMID 28012254 DOI: 10.1002/Chem.201605999 |
0.832 |
|
| 2016 |
Das T, Kayet A, Mishra R, Singh VK. Highly fluorescent 1,2-dihydropyrimido[1,6-α]indole: an efficient metal free synthesis and photophysical study. Chemical Communications (Cambridge, England). PMID 27560510 DOI: 10.1039/C6Cc05378E |
0.7 |
|
| 2016 |
Karmakar R, Suneja A, Singh VK. Ag(I)-Catalyzed Indolization/C3-Functionalization Cascade of 2-Ethynylanilines via Ring Opening of Donor-Acceptor Cyclopropanes. Organic Letters. PMID 27186903 DOI: 10.1021/acs.orglett.6b01057 |
0.399 |
|
| 2016 |
Dhanasekaran S, Suneja A, Bisai V, Singh VK. Approach to Isoindolinones, Isoquinolinones, and THIQs via Lewis Acid-Catalyzed Domino Strecker-Lactamization/Alkylations. Organic Letters. PMID 26843100 DOI: 10.1021/acs.orglett.5b03331 |
0.477 |
|
| 2016 |
Bisai V, Singh VK. Recent developments in asymmetric alkynylations Tetrahedron Letters. 57: 4771-4784. DOI: 10.1016/J.Tetlet.2016.09.048 |
0.502 |
|
| 2015 |
Karmakar R, Suneja A, Bisai V, Singh VK. Ni(II)-Catalyzed Highly Stereo- and Regioselective Syntheses of Isoindolinones and Isoquinolinones from in Situ Prepared Aldimines Triggered by Homoallylation/Lactamization Cascade. Organic Letters. PMID 26517732 DOI: 10.1021/acs.orglett.5b02932 |
0.355 |
|
| 2015 |
Saha P, Biswas A, Molleti N, Singh VK. Enantioselective Synthesis of Highly Substituted Chromans via the Oxa-Michael-Michael Cascade Reaction with a Bifunctional Organocatalyst. The Journal of Organic Chemistry. 80: 11115-22. PMID 26470031 DOI: 10.1021/Acs.Joc.5B01751 |
0.533 |
|
| 2015 |
Das T, Saha P, Singh VK. Silver(I)-Ferrophox Catalyzed Enantioselective Desymmetrization of Cyclopentenedione: Synthesis of Highly Substituted Bicyclic Pyrrolidines. Organic Letters. 17: 5088-91. PMID 26439369 DOI: 10.1021/Acs.Orglett.5B02582 |
0.707 |
|
| 2015 |
Sinha D, Biswas A, Singh VK. Chiral Phosphine-Silver(I) Complex Catalyzed Enantioselective Interrupted Feist-Bénary Reaction with Ynones: The Aldol-Cycloisomerization Cascade. Organic Letters. PMID 26106952 DOI: 10.1021/acs.orglett.5b01468 |
0.486 |
|
| 2015 |
Dhanasekaran S, Kayet A, Suneja A, Bisai V, Singh VK. Unified Approach to Isoindolinones and THIQs via Lewis Acid Catalyzed Domino Mukaiyama-Mannich Lactamization/Alkylations: Application in the Synthesis of (±)-Homolaudanosine. Organic Letters. 17: 2780-3. PMID 25992840 DOI: 10.1021/acs.orglett.5b01197 |
0.394 |
|
| 2015 |
Agrawal S, Molleti N, Singh VK. Organocatalytic enantio- and diastereoselective synthesis of highly substituted δ-lactones via a Michael-cyclization cascade. Chemical Communications (Cambridge, England). 51: 9793-6. PMID 25990627 DOI: 10.1039/C5Cc02776D |
0.59 |
|
| 2015 |
Bisai V, Unhale RA, Suneja A, Dhanasekaran S, Singh VK. An Efficient Entry to syn- and anti-Selective Isoindolinones via an Organocatalytic Direct Mannich/Lactamization Sequence. Organic Letters. 17: 2102-5. PMID 25867051 DOI: 10.1021/acs.orglett.5b00676 |
0.794 |
|
| 2015 |
Molleti N, Singh VK. Highly enantioselective synthesis of naphthoquinones and pyranonaphthoquinones catalyzed by bifunctional chiral bis-squaramides. Organic & Biomolecular Chemistry. 13: 5243-54. PMID 25856465 DOI: 10.1039/C5Ob00105F |
0.581 |
|
| 2015 |
Singh VK, Doharey PK, Kumar V, Saxena JK, Siddiqi MI, Rathaur S, Narender T. Synthesis, molecular docking and Brugia malayi thymidylate kinase (BmTMK) enzyme inhibition study of novel derivatives of [6]-shogaol. European Journal of Medicinal Chemistry. 93: 74-82. PMID 25659753 DOI: 10.1016/j.ejmech.2015.01.035 |
0.278 |
|
| 2015 |
Singh VK, Puerta MC, Valerga P. Differential Reactivity of [TpRu(κ2P,N-iPr2PXPy)Cl] (X = NH, S) Bearing Hemilabile Coligands Towards NaBArF4, Lithium Acetylide, and Acetylenes European Journal of Inorganic Chemistry. 2015: 1811-1818. DOI: 10.1002/ejic.201500082 |
0.274 |
|
| 2014 |
Dhanasekaran S, Bisai V, Unhale RA, Suneja A, Singh VK. A general catalytic route to isoindolinones and tetrahydroisoquinolines: application in the synthesis of (±)-crispine A. Organic Letters. 16: 6068-71. PMID 25393501 DOI: 10.1021/ol502842f |
0.809 |
|
| 2014 |
Rout S, Ray SK, Unhale RA, Singh VK. Asymmetric direct vinylogous Michael addition to 2-enoylpyridine N-oxides catalyzed by bifunctional thio-urea. Organic Letters. 16: 5568-71. PMID 25307167 DOI: 10.1021/ol5025794 |
0.817 |
|
| 2014 |
Bisai V, Suneja A, Singh VK. Asymmetric alkynylation/lactamization cascade: an expeditious entry to enantiomerically enriched isoindolinones. Angewandte Chemie (International Ed. in English). 53: 10737-41. PMID 25146686 DOI: 10.1002/Anie.201405074 |
0.546 |
|
| 2014 |
Garg A, Panda S, Dalvi P, Mehra S, Ray S, Singh VK. Severe suicidal digoxin and propranolol toxicity with insulin overdose. Indian Journal of Critical Care Medicine : Peer-Reviewed, Official Publication of Indian Society of Critical Care Medicine. 18: 173-5. PMID 24701069 DOI: 10.4103/0972-5229.128709 |
0.592 |
|
| 2014 |
Garg A, Vignesh C, Singh VK, Ray S. Acute right heart syndrome: Rescue treatment with inhaled nitric oxide. Indian Journal of Critical Care Medicine : Peer-Reviewed, Official Publication of Indian Society of Critical Care Medicine. 18: 40-2. PMID 24550613 DOI: 10.4103/0972-5229.125436 |
0.604 |
|
| 2013 |
Tewary K, Singh VK, Singh SK, Tiwary P, Garg A, Joshi KK. Epidemiology of diabetes mellitus in young population in rural districts of northern Bihar Journal of the Indian Medical Association. 111: 103-106. PMID 24003567 |
0.325 |
|
| 2013 |
Rout S, Ray SK, Singh VK. Enantioselective Mukaiyama-Michael with 2-enoyl pyridine N-oxides catalyzed by PYBOX-DIPH-Zn(II)-complexes at ambient temperature. Organic & Biomolecular Chemistry. 11: 4537-45. PMID 23722314 DOI: 10.1039/C3Ob40445E |
0.83 |
|
| 2013 |
Ray SK, Rout S, Singh VK. Enantioselective synthesis of 3,4-dihydropyran derivatives via a Michael addition reaction catalysed by chiral pybox-diph-Zn(II) complex. Organic & Biomolecular Chemistry. 11: 2412-6. PMID 23471180 DOI: 10.1039/C3Ob40246K |
0.847 |
|
| 2013 |
Molleti N, Allu S, Ray SK, Singh VK. Bifunctional chiral urea catalyzed highly enantioselective Michael addition of cyclic 1,3-dicarbonyl compounds to 2-enoylpyridines Tetrahedron Letters. 54: 3241-3244. DOI: 10.1016/J.Tetlet.2013.04.003 |
0.729 |
|
| 2013 |
Unhale RA, Rana NK, Singh VK. Organocatalytic enantioselective transient enolate protonation in conjugate addition of thioacetic acid to α-substituted N-acryloyloxazolidinones Tetrahedron Letters. 54: 1911-1915. DOI: 10.1016/J.Tetlet.2013.01.004 |
0.847 |
|
| 2013 |
Molleti N, Allu S, Ray SK, Singh VK. ChemInform Abstract: Bifunctional Chiral Urea Catalyzed Highly Enantioselective Michael Addition of Cyclic 1,3-Dicarbonyl Compounds to 2-Enoylpyridine. Cheminform. 44: no-no. DOI: 10.1002/chin.201340158 |
0.656 |
|
| 2013 |
Unhale RA, Rana NK, Singh VK. ChemInform Abstract: Organocatalytic Enantioselective Transient Enolate Protonation in Conjugate Addition of Thioacetic Acid to α-Substituted N-Acryloyloxazolidinones. Cheminform. 44: no-no. DOI: 10.1002/chin.201329079 |
0.83 |
|
| 2012 |
Ray SK, Singh PK, Molleti N, Singh VK. Enantioselective synthesis of coumarin derivatives by PYBOX-DIPH-Zn(II) complex catalyzed Michael reaction. The Journal of Organic Chemistry. 77: 8802-8. PMID 22957472 DOI: 10.1021/jo301513x |
0.683 |
|
| 2012 |
Molleti N, Rana NK, Singh VK. Highly enantioselective conjugate addition of malononitrile to 2-enoylpyridines with bifunctional organocatalyst. Organic Letters. 14: 4322-5. PMID 22920458 DOI: 10.1021/Ol3015607 |
0.812 |
|
| 2012 |
Singh PK, Singh VK. Chiral 2,6-bis(5',5'-diphenyloxazoline)pyridine as an efficient ligand for asymmetric catalysis Pure and Applied Chemistry. 84: 1651-1657. DOI: 10.1351/PAC-CON-11-10-16 |
0.386 |
|
| 2012 |
Rana NK, Unhale R, Singh VK. Enantioselective sulfa-Michael addition of thioacids to α,β-unsaturated ketones with bifunctional organocatalyst Tetrahedron Letters. 53: 2121-2124. DOI: 10.1016/J.Tetlet.2012.02.052 |
0.847 |
|
| 2012 |
Bisai V, Bisai A, Singh VK. Enantioselective organocatalytic aldol reaction using small organic molecules Tetrahedron. 68: 4541-4580. DOI: 10.1016/J.Tet.2012.03.099 |
0.714 |
|
| 2012 |
Singh PK, Singh VK. ChemInform Abstract: Chiral 2,6-Bis(5′,5′-diphenyloxazoline)pyridine as an Efficient Ligand for Asymmetric Catalysis Cheminform. 43: no-no. DOI: 10.1002/chin.201250247 |
0.307 |
|
| 2012 |
Bisai A, Singh VK. ChemInform Abstract: Enantioselective One-Pot Three-Component Synthesis of Propargylamines Catalyzed by Copper(I)-Pyridine Bis-(oxazoline) Complexes. Cheminform. 43: no-no. DOI: 10.1002/chin.201244065 |
0.669 |
|
| 2012 |
Bisai V, Bisai A, Singh VK. ChemInform Abstract: Enantioselective Organocatalytic Aldol Reaction Using Small Organic Molecules Cheminform. 43: no-no. DOI: 10.1002/chin.201240243 |
0.641 |
|
| 2012 |
Rana NK, Unhale R, Singh VK. ChemInform Abstract: Enantioselective Sulfa-Michael Addition of Thioacids to α,β-Unsaturated Ketones with Bifunctional Organocatalyst. Cheminform. 43: no-no. DOI: 10.1002/chin.201231035 |
0.821 |
|
| 2011 |
Rana NK, Singh VK. Enantioselective enolate protonation in sulfa-Michael addition to α-substituted N-acryloyloxazolidin-2-ones with bifunctional organocatalyst. Organic Letters. 13: 6520-3. PMID 22097882 DOI: 10.1021/Ol202808N |
0.802 |
|
| 2011 |
Ray SK, Singh PK, Singh VK. Enantioselective Michael addition of malonates to 2-enoylpyridine N-oxides catalyzed by chiral bisoxazoline-Zn(II) complex. Organic Letters. 13: 5812-5. PMID 21970689 DOI: 10.1021/Ol202405V |
0.685 |
|
| 2011 |
Singh V, Bisai V. Organocatalytic Enantioselective Direct Aldol Reaction in Aqueous Media Catalyzed by a Bifunctional Diamine Catalyst Synlett. 2011: 481-484. DOI: 10.1055/s-0030-1259524 |
0.386 |
|
| 2011 |
Allu S, Molleti N, Panem R, Singh VK. Enantioselective organocatalytic aldol reaction of unactivated ketones with isatins Tetrahedron Letters. 52: 4080-4083. DOI: 10.1016/J.Tetlet.2011.05.013 |
0.546 |
|
| 2011 |
Allu S, Molleti N, Panem R, Singh VK. ChemInform Abstract: Enantioselective Organocatalytic Aldol Reaction of Unactivated Ketones with Isatins. Cheminform. 42: no-no. DOI: 10.1002/chin.201147094 |
0.449 |
|
| 2011 |
Bisai V, Singh VK. ChemInform Abstract: Organocatalytic Enantioselective Direct Aldol Reaction in Aqueous Media Catalyzed by a Bifunctional Diamine Catalyst. Cheminform. 42: no-no. DOI: 10.1002/chin.201127063 |
0.398 |
|
| 2011 |
Singh PK, Singh VK. ChemInform Abstract: Enantioselective Reactions Catalyzed by Chiral Pyridine 2,6-Bis(5′,5′-diphenyloxazoline)-metal Complexes Cheminform. 42: no-no. DOI: 10.1002/chin.201110238 |
0.387 |
|
| 2010 |
Rana NK, Selvakumar S, Singh VK. Highly enantioselective organocatalytic sulfa-Michael addition to alpha,beta-unsaturated ketones. The Journal of Organic Chemistry. 75: 2089-91. PMID 20180509 DOI: 10.1021/Jo902634A |
0.822 |
|
| 2010 |
Singh PK, Singh VK. Enantioselective Friedel-Crafts alkylation of pyrroles catalyzed by PYBOX-DIPH-Zn(II) complexes. Organic Letters. 12: 80-3. PMID 19947623 DOI: 10.1021/Ol902360B |
0.503 |
|
| 2010 |
Singh PK, Singh VK. Enantioselective reactions catalyzed by chiral pyridine 2,6-bis(5',5'-diphenyloxazoline)-metal complexes Pure and Applied Chemistry. 82: 1845-1853. DOI: 10.1351/PAC-CON-09-09-40 |
0.361 |
|
| 2010 |
Anand RV, Pandey G, Singh VK. Silica Gel Induced Cleavage of Aziridines by Aromatic Amines under Solvent Free Conditions. Cheminform. 33: 44-44. DOI: 10.1016/S0040-4039(02)00727-X |
0.406 |
|
| 2010 |
Raj M, Veerasamy N, Singh VK. Highly enantioselective synthesis of 3-cycloalkanone-3-hydroxy-2-oxindoles, potential anticonvulsants Tetrahedron Letters. 51: 2157-2159. DOI: 10.1016/J.Tetlet.2010.02.082 |
0.761 |
|
| 2010 |
Allu S, Selvakumar S, Singh VK. Asymmetric organocatalytic Michael-type reaction of phosphorus ylides to nitroolefins: synthesis of γ-nitro-β-aryl-α-methylene carboxylic esters Tetrahedron Letters. 51: 446-448. DOI: 10.1016/j.tetlet.2009.11.063 |
0.491 |
|
| 2010 |
Raj M, Veerasamy N, Singh VK. ChemInform Abstract: Highly Enantioselective Synthesis of 3-Cycloalkanone-3-hydroxy-2-oxindoles, Potential Anticonvulsants. Cheminform. 41: no-no. DOI: 10.1002/chin.201032121 |
0.424 |
|
| 2010 |
Rana NK, Selvakumar S, Singh VK. ChemInform Abstract: Highly Enantioselective Organocatalytic Sulfa-Michael Addition to α,β-Unsaturated Ketones. Cheminform. 41: no-no. DOI: 10.1002/chin.201026088 |
0.776 |
|
| 2010 |
Allu S, Selvakumar S, Singh VK. ChemInform Abstract: Asymmetric Organocatalytic Michael-Type Reaction of Phosphorus Ylides to Nitroolefins: Synthesis of γ-Nitro-β-aryl-α-methylene Carboxylic Esters. Cheminform. 41. DOI: 10.1002/chin.201015073 |
0.474 |
|
| 2010 |
Chandra KL, Bisai A, Saravanan P, Singh VK. ChemInform Abstract: A One-Pot Synthesis of β-Chloro Acetates/Benzoates from Epoxides. Cheminform. 33: no-no. DOI: 10.1002/chin.200242051 |
0.674 |
|
| 2010 |
Saravanan P, Bisai A, Baktharaman S, Chandrasekhar M, Singh VK. ChemInform Abstract: Synthesis of Chiral Non-racemic 1,2-Diamines from O-Acetyl Mandelic Acid: Application in Enantioselective Deprotonation of Epoxides and Diethylzinc Addition to Aldehydes. Cheminform. 33: no-no. DOI: 10.1002/chin.200241036 |
0.679 |
|
| 2010 |
Chandra KL, Saravanan P, Singh RK, Singh VK. ChemInform Abstract: Lewis Acid Catalyzed Acylation Reactions: Scope and Limitations. Cheminform. 33: no-no. DOI: 10.1002/chin.200229081 |
0.395 |
|
| 2010 |
Chandra KL, Saravanan P, Singh VK. ChemInform Abstract: One-Step Conversion of Silyl/THP Ethers into the Corresponding Acetates. Cheminform. 32: no-no. DOI: 10.1002/chin.200146061 |
0.386 |
|
| 2010 |
Saravanan P, Singh VK. ChemInform Abstract: An Investigation on Desilylation of Alkyl and Phenolic Silyl Ethers Using FeCl3. Cheminform. 30: no-no. DOI: 10.1002/chin.199949067 |
0.338 |
|
| 2010 |
Anand RV, Saravanan P, Singh VK. ChemInform Abstract: Solvent-Free Thioacetalization of Carbonyl Compounds Catalyzed by Cu(OTf)2-SiO2. Cheminform. 30: no-no. DOI: 10.1002/chin.199930072 |
0.374 |
|
| 2010 |
Saravanan P, Singh VK. ChemInform Abstract: An Efficient Method for Acylation Reactions. Cheminform. 30: no-no. DOI: 10.1002/chin.199927071 |
0.33 |
|
| 2010 |
SEKAR G, DATTAGUPTA A, SINGH VK. ChemInform Abstract: Asymmetric Kharasch Reaction: Catalytic Enantioselective Allylic Oxidation of Olefins Using Chiral Pyridine Bis(diphenyloxazoline)-Copper Complexes and tert-Butyl Perbenzoate. Cheminform. 29: no-no. DOI: 10.1002/chin.199835049 |
0.43 |
|
| 2010 |
SARAVANAN P, ANAND RV, SINGH VK. ChemInform Abstract: Cu(OTf)2 Catalyzed Trimethylsilyl Cyanide Addition to Carbonyl Compounds. Cheminform. 29: no-no. DOI: 10.1002/chin.199833071 |
0.383 |
|
| 2010 |
SARAVANAN P, CHANDRASEKHAR M, ANAND RV, SINGH VK. ChemInform Abstract: An Efficient Method for Deprotection of Acetals. Cheminform. 29: no-no. DOI: 10.1002/chin.199832088 |
0.393 |
|
| 2010 |
SARAVANAN P, SINGH VK. ChemInform Abstract: An Efficient Synthesis of Chiral Nonracemic Diamines: Application in Asymmetric Synthesis. Cheminform. 29: no-no. DOI: 10.1002/chin.199815075 |
0.399 |
|
| 2010 |
SARAVANAN P, RAINA S, SAMBAMURTHY T, SINGH VK. ChemInform Abstract: A Practical Synthesis of (2R,5R)-2,5-Hexanediol. Cheminform. 28: no-no. DOI: 10.1002/chin.199736079 |
0.27 |
|
| 2010 |
SINGH VK, DATTAGUPTA A, SEKAR G. ChemInform Abstract: Catalytic Enantioselective Cyclopropanation of Olefins Using Carbenoid Chemistry Cheminform. 28: no-no. DOI: 10.1002/chin.199730245 |
0.436 |
|
| 2010 |
DATTAGUPTA A, SINGH VK. ChemInform Abstract: Catalytic Enantioselective Allylic Oxidation of Olefins with Copper Complexes of Chiral Nonracemic Bis(oxazolinyl)pyridine Type Ligands. Cheminform. 27: no-no. DOI: 10.1002/chin.199630043 |
0.306 |
|
| 2010 |
RAINA S, SINGH VK. ChemInform Abstract: Asymmetric Synthesis of 5-Hexadecanolide, Pheromone of the Queen of the Oriental Hornet, Vespa orientalis. Cheminform. 27: no-no. DOI: 10.1002/chin.199628289 |
0.331 |
|
| 2010 |
BHUNIYA D, GUPTA AD, SINGH VK. ChemInform Abstract: Synthesis of Versatile Intermediates for Cyclopentanoid Natural Products via Enantioselective Deprotonation of Substituted Cyclopentene Oxide. Cheminform. 26: no-no. DOI: 10.1002/chin.199533035 |
0.365 |
|
| 2010 |
RAINA S, SINGH VK. ChemInform Abstract: Reaction of Epoxides with Activated DMSO Reagent. General Method for Synthesis of α-Chlorocarbonyl Compounds: Application in Asymmetric Synthesis of (3S)-2,3-Oxidosqualene (Xc). Cheminform. 26: no-no. DOI: 10.1002/chin.199529122 |
0.455 |
|
| 2010 |
GUPTA AD, BHUNIYA D, SINGH VK. ChemInform Abstract: Recent Aspects of Enantioselective Epoxidation Reactions Cheminform. 26: no-no. DOI: 10.1002/chin.199520276 |
0.406 |
|
| 2010 |
GUPTA AD, BHUNIYA D, SINGH VK. ChemInform Abstract: Synthesis of Homochiral Bis(oxazolinyl)pyridine Type Ligands for Asymmetric Cyclopropanation Reactions. Cheminform. 26: no-no. DOI: 10.1002/chin.199520021 |
0.397 |
|
| 2010 |
RAINA S, BHUNIYA D, SINGH VK. ChemInform Abstract: A Mild Method for Conversion of Epoxides into α-Chloro Ketones. Cheminform. 24: no-no. DOI: 10.1002/chin.199312108 |
0.34 |
|
| 2009 |
Raj M, Singh VK. Organocatalytic reactions in water. Chemical Communications (Cambridge, England). 6687-703. PMID 19885454 DOI: 10.1039/B910861K |
0.738 |
|
| 2009 |
Selvakumar S, Sivasankaran D, Singh VK. Enantioselective Henry reaction catalyzed by C2-symmetric chiral diamine–copper(II) complex Organic & Biomolecular Chemistry. 7: 3156. DOI: 10.1039/B904254G |
0.364 |
|
| 2009 |
Kumar M, Pandey SK, Gandhi S, Singh VK. PPh3/halogenating agent-mediated highly efficient ring opening of activated and non-activated aziridines Tetrahedron Letters. 50: 363-365. DOI: 10.1016/J.Tetlet.2008.11.009 |
0.773 |
|
| 2009 |
Garg A, Singh VK. A facile approach towards synthesis of verbalactone and biologically active δ-lactones using d-glucose Tetrahedron. 65: 8677-8682. DOI: 10.1016/J.Tet.2009.08.054 |
0.557 |
|
| 2009 |
Selvakumar S, Sivasankaran D, Singh VK. ChemInform Abstract: Enantioselective Henry Reaction Catalyzed by C2-Symmetric Chiral DiamineâCopper(II) Complex. Cheminform. 40. DOI: 10.1002/chin.200952076 |
0.377 |
|
| 2009 |
Raj M, Parashari GS, Singh VK. ChemInform Abstract: Highly Enantioselective Organocatalytic syn- and anti-Aldol Reactions in Aqueous Medium. Cheminform. 40. DOI: 10.1002/chin.200944072 |
0.395 |
|
| 2009 |
Raj M, Parashari G, Singh V. Highly Enantioselective Organocatalyticsyn- andanti-Aldol Reactions in Aqueous Medium Advanced Synthesis & Catalysis. 351: 1284-1288. DOI: 10.1002/Adsc.200900122 |
0.781 |
|
| 2008 |
Gandhi S, Singh VK. Synthesis of chiral organocatalysts derived from aziridines: application in asymmetric aldol reaction. The Journal of Organic Chemistry. 73: 9411-6. PMID 18980379 DOI: 10.1021/Jo8019863 |
0.846 |
|
| 2008 |
Singh PK, Singh VK. Highly enantioselective Friedel-Crafts reaction of indoles with 2-enoylpyridine 1-oxides catalyzed by chiral pyridine 2,6-bis(5',5'-diphenyloxazoline)-Cu(II) complexes. Organic Letters. 10: 4121-4. PMID 18722459 DOI: 10.1021/Ol8016929 |
0.504 |
|
| 2008 |
Kumar M, Gandhi S, Singh Kalra S, Singh VK. Efficient Ring Opening of Aziridines with Carboxylic Acids Synthetic Communications. 38: 1527-1532. DOI: 10.1080/00397910801928723 |
0.818 |
|
| 2008 |
Pandey SK, Bisai A, Singh VK. ChemInform Abstract: Activation of DMSO by Phosphonitrilic Chloride: An Efficient Method for Oxidation of Alcohols. Cheminform. 39. DOI: 10.1002/chin.200817036 |
0.558 |
|
| 2007 |
Selvakumar S, Baktharaman S, Singh VK. Lewis acid-mediated rearrangement of activated cyclic amines: a facile synthetic protocol for the preparation of amino carbonyl compounds. The Journal of Organic Chemistry. 72: 10141-6. PMID 18044931 DOI: 10.1021/jo702044k |
0.813 |
|
| 2007 |
Ginotra SK, Singh VK. Enantioselective Henry reaction catalyzed by a C2-symmetric bis(oxazoline)-Cu(OAc)2.H2O complex. Organic & Biomolecular Chemistry. 5: 3932-7. PMID 18043796 DOI: 10.1039/b714153j |
0.366 |
|
| 2007 |
Maya V, Raj M, Singh VK. Highly enantioselective organocatalytic direct aldol reaction in an aqueous medium. Organic Letters. 9: 2593-5. PMID 17518481 DOI: 10.1021/Ol071013L |
0.783 |
|
| 2007 |
Vishnumaya, Singh VK. Highly enantioselective water-compatible organocatalyst for Michael reaction of ketones to nitroolefins. Organic Letters. 9: 1117-9. PMID 17316013 DOI: 10.1021/Ol070082X |
0.564 |
|
| 2007 |
Gandhi S, Bisai A, Prasad BA, Singh VK. Studies on the reaction of aziridines with nitriles and carbonyls: synthesis of imidazolines and oxazolidines. The Journal of Organic Chemistry. 72: 2133-42. PMID 17300205 DOI: 10.1021/Jo062564C |
0.853 |
|
| 2007 |
Pandey SK, Bisai A, Singh VK. Activation of DMSO by Phosphonitrilic Chloride: An Efficient Method for Oxidation of Alcohols Synthetic Communications. 37: 4099-4103. DOI: 10.1080/00397910701572597 |
0.567 |
|
| 2007 |
Dwivedi SK, Gandhi S, Rastogi N, Singh VK. Lewis Acid Catalyzed Regioselective Ring Opening of Azetidines with Alcohols and Thiols. Cheminform. 38. DOI: 10.1016/J.Tetlet.2007.06.033 |
0.837 |
|
| 2007 |
Dwivedi SK, Gandhi S, Rastogi N, Singh VK. Lewis acid catalyzed regioselective ring opening of azetidines with alcohols and thiols Tetrahedron Letters. 48: 5375-5377. DOI: 10.1016/j.tetlet.2007.06.033 |
0.538 |
|
| 2007 |
Bisai A, Singh VK. An efficient approach to 2-substituted N-tosylpiperdines: asymmetric synthesis of 2-(2-hydroxy substituted)piperidine alkaloids Tetrahedron Letters. 48: 1907-1910. DOI: 10.1016/J.Tetlet.2007.01.082 |
0.687 |
|
| 2007 |
Singh PK, Bisai A, Singh VK. Enantioselective Friedel–Crafts alkylation of indoles with nitroalkenes catalyzed by a bis(oxazoline)–Cu(II) complex Tetrahedron Letters. 48: 1127-1129. DOI: 10.1016/J.Tetlet.2006.12.081 |
0.731 |
|
| 2007 |
Bisai A, Singh PK, Singh VK. Enantioselective diethylzinc addition to aldehydes catalyzed by Ti(IV) complex of unsymmetrical chiral bis(sulfonamide) ligands of trans-cyclohexane 1,2-diamine Tetrahedron. 63: 598-601. DOI: 10.1016/J.Tet.2006.11.022 |
0.692 |
|
| 2007 |
Singh PK, Bisai A, Singh VK. Enantioselective Friedel—Crafts Alkylation of Indoles with Nitroalkenes Catalyzed by a Bis(oxazoline)—Cu(II) Complex. Cheminform. 38. DOI: 10.1002/chin.200721096 |
0.633 |
|
| 2007 |
Bisai A, Singh PK, Singh VK. Enantioselective Diethylzinc Addition to Aldehydes Catalyzed by Ti(IV) Complex of Unsymmetrical Chiral Bis(sulfonamide) Ligands of trans-Cyclohexane 1,2-Diamine. Cheminform. 38. DOI: 10.1002/chin.200721060 |
0.659 |
|
| 2007 |
Garg A, Singh RP, Singh VK. Asymmetric Synthesis of (+)-Cardiobutanolide. Cheminform. 38. DOI: 10.1002/chin.200710229 |
0.75 |
|
| 2006 |
Ginotra SK, Singh VK. Studies on enantioselective allylic oxidation of olefins using peresters catalyzed by Cu(I)-complexes of chiral pybox ligands. Organic & Biomolecular Chemistry. 4: 4370-4. PMID 17102883 DOI: 10.1039/b612423b |
0.418 |
|
| 2006 |
Baktharaman S, Selvakumar S, Singh VK. Cleavage of activated cyclic amines: Unprecedented approach toward 2-substituted cyclobutanones. Organic Letters. 8: 4335-8. PMID 16956220 DOI: 10.1021/Ol0616687 |
0.835 |
|
| 2006 |
Raj M, Vishnumaya V, Ginotra SK, Singh VK. Highly enantioselective direct aldol reaction catalyzed by organic molecules. Organic Letters. 8: 4097-9. PMID 16928083 DOI: 10.1021/Ol0616081 |
0.779 |
|
| 2006 |
Bisai A, Singh VK. Enantioselective one-pot three-component synthesis of propargylamines. Organic Letters. 8: 2405-8. PMID 16706537 DOI: 10.1021/Ol060793F |
0.752 |
|
| 2006 |
Bisai A, Prasad BAB, Singh VK. Aminolysis of N-tosylaziridines: an approach to asymmetric synthesis of symmetric and unsymmetric chiral sulfonamide ligands Arkivoc. 2007. DOI: 10.3998/Ark.5550190.0008.503 |
0.747 |
|
| 2006 |
Singh V, Raj M, Ginotra S. New Proline Amides as Catalyst for the Direct Aldol Reaction Synfacts. 2006: 1066-1066. DOI: 10.1055/s-2006-949375 |
0.347 |
|
| 2006 |
Bisai A, Prasad BB, Singh VK. Corrigendum to “Synthesis of chiral vicinal C2 symmetric and unsymmetric bis(sulfonamide) ligands based on trans-1,2-cyclohexanediamine by aminolysis of N-tosylaziridines” Tetrahedron Letters. 47: 1487. DOI: 10.1016/J.Tetlet.2005.12.052 |
0.647 |
|
| 2006 |
Pandey MK, Bisai A, Singh VK. Enantioselective turnover in glyoxylate-ene reactions catalyzed by chiral copper complexes Tetrahedron Letters. 47: 897-900. DOI: 10.1016/J.Tetlet.2005.11.159 |
0.768 |
|
| 2006 |
Garg A, Singh RP, Singh VK. Asymmetric synthesis of (+)-cardiobutanolide Tetrahedron. 62: 11240-11244. DOI: 10.1016/J.Tet.2006.09.005 |
0.555 |
|
| 2006 |
Ginotra SK, Singh VK. Enantioselective oxidation of olefins catalyzed by chiral copper bis(oxazolinyl)pyridine complexes: a reassessment Tetrahedron. 62: 3573-3581. DOI: 10.1016/J.Tet.2006.01.093 |
0.433 |
|
| 2006 |
Singh V. Synthesis of Novel Unsaturated Purine Nucleoside (VI). Cheminform. 37. DOI: 10.1002/chin.200639216 |
0.352 |
|
| 2006 |
Pandey MK, Bisai A, Singh VK. Enantioselective Turnover in Glyoxylate-ene Reactions Catalyzed by Chiral Copper Complexes. Cheminform. 37. DOI: 10.1002/chin.200620081 |
0.701 |
|
| 2006 |
Baktharaman S, Selvakumar S, Singh VK. Asymmetric Synthesis of all the Stereoisomers of Tarchonanthuslactone (I). Cheminform. 37. DOI: 10.1002/chin.200608195 |
0.391 |
|
| 2005 |
Bisai A, Prasad BB, Singh VK. Synthesis of chiral vicinal C2 symmetric and unsymmetric bis(sulfonamide) ligands based on trans-1,2-cyclohexanediamine by aminolysis of N-tosylaziridines Tetrahedron Letters. 46: 7935-7939. DOI: 10.1016/J.Tetlet.2005.09.089 |
0.741 |
|
| 2005 |
Baktharaman S, Selvakumar S, Singh VK. Asymmetric synthesis of all the stereoisomers of tarchonanthuslactone Tetrahedron Letters. 46: 7527-7529. DOI: 10.1016/J.Tetlet.2005.08.164 |
0.539 |
|
| 2005 |
Pandey MK, Bisai A, Pandey A, Singh VK. Imino-ene reaction of N-tosyl arylaldimines with α-methylstyrene: application in the synthesis of important amines Tetrahedron Letters. 46: 5039-5041. DOI: 10.1016/J.Tetlet.2005.05.073 |
0.764 |
|
| 2005 |
Pandey G, Singh RP, Garg A, Singh VK. Synthesis of Mannich type products via a three-component coupling reaction Tetrahedron Letters. 46: 2137-2140. DOI: 10.1016/J.Tetlet.2005.01.118 |
0.675 |
|
| 2005 |
Pandey MK, Bisai A, Singh VK. Regioselective Ring Opening of Aziridines with Activated DMF Complexes: A Facile Synthesis of ?-Haloamines. Cheminform. 36. DOI: 10.1016/J.Tetlet.2004.10.161 |
0.707 |
|
| 2005 |
Pandey MK, Bisai A, Pandey A, Singh VK. Imino-ene Reaction of N-Tosyl Arylaldimines with α-Methylstyrene: Application in the Synthesis of Important Amines. Cheminform. 36. DOI: 10.1002/chin.200544090 |
0.717 |
|
| 2005 |
Pandey G, Singh RP, Garg A, Singh VK. Synthesis of Mannich Type Products via a Three-Component Coupling Reaction. Cheminform. 36. DOI: 10.1002/chin.200528076 |
0.726 |
|
| 2005 |
Prasad BAB, Bisai A, Singh VK. Trimethylsilyl Cyanide Addition to Aldimines and Its Application in the Synthesis of (S)-Phenylglycine Methyl Ester. Cheminform. 36. DOI: 10.1002/chin.200514091 |
0.624 |
|
| 2004 |
Prasad BA, Bisai A, Singh VK. 2-aryl-N-tosylazetidines as formal 1,4-dipoles for [4 + 2] cycloaddition reactions with nitriles: an easy access to the tetrahydropyrimidine derivatives. Organic Letters. 6: 4829-31. PMID 15606077 DOI: 10.1021/Ol048161L |
0.736 |
|
| 2004 |
Singh RP, Singh VK. Facile one-step synthesis of beta-alkoxy lactone via sequential lactonization and 1,4-addition of alkoxide group: total synthesis of all stereoisomers of dihydrokawain-5-ol. The Journal of Organic Chemistry. 69: 3425-30. PMID 15132552 DOI: 10.1021/Jo049858N |
0.667 |
|
| 2004 |
Prasad BB, Bisai A, Singh VK. Trimethylsilyl cyanide addition to aldimines and its application in the synthesis of (S)-phenylglycine methyl ester Tetrahedron Letters. 45: 9565-9567. DOI: 10.1016/J.Tetlet.2004.11.015 |
0.697 |
|
| 2004 |
Pandey MK, Bisai A, Singh VK. Regioselective ring opening of aziridines with activated DMF complexes: a facile synthesis of β-haloamines Tetrahedron Letters. 45: 9661-9663. DOI: 10.1016/j.tetlet.2004.10.161 |
0.658 |
|
| 2004 |
Prasad B, Pandey G, Singh VK. Synthesis of substituted imidazolines via [3+2]-cycloaddition of aziridines with nitriles Tetrahedron Letters. 45: 1137-1141. DOI: 10.1016/J.Tetlet.2003.12.015 |
0.52 |
|
| 2004 |
Prasad BAB, Pandey G, Singh VK. Synthesis of Substituted Imidazolines via [3 + 2]-Cycloaddition of Aziridines with Nitriles. Cheminform. 35. DOI: 10.1002/chin.200419112 |
0.441 |
|
| 2003 |
Chandrasekhar M, Chandra KL, Singh VK. Total synthesis of (+)-boronolide, (+)-deacetylboronolide, and (+)-dideacetylboronolide. The Journal of Organic Chemistry. 68: 4039-45. PMID 12737588 DOI: 10.1021/Jo0269058 |
0.558 |
|
| 2003 |
Anand RV, Baktharaman S, Singh VK. A ring-closing metathesis approach toward formal total synthesis of (+)-diplodialide A. The Journal of Organic Chemistry. 68: 3356-9. PMID 12688821 DOI: 10.1021/Jo034049+ |
0.517 |
|
| 2003 |
Raina S, Prasad BAB, Singh VK. A model synthetic approach towards the furanacetal component of azadirachtin: a potent insect antifeedant Arkivoc. 2003. DOI: 10.3998/Ark.5550190.0004.303 |
0.419 |
|
| 2003 |
Bisai A, Pandey G, Pandey MK, Singh VK. Do aziridines require Lewis acids for cleavage with ionic nucleophiles? Tetrahedron Letters. 44: 5839-5841. DOI: 10.1016/S0040-4039(03)01414-X |
0.739 |
|
| 2003 |
Kamble RM, Singh VK. Enantioselective phenylacetylene addition to aldehydes induced by Cinchona alkaloids Tetrahedron Letters. 44: 5347-5349. DOI: 10.1016/S0040-4039(03)01196-1 |
0.368 |
|
| 2003 |
Bisai A, Pandey G, Pandey MK, Singh VK. Do Aziridines Require Lewis Acids for Cleavage with Ionic Nucleophiles? Cheminform. 34. DOI: 10.1002/chin.200347047 |
0.61 |
|
| 2003 |
Kamble RM, Singh VK. Enantioselective Phenylacetylene Addition to Aldehydes Induced by Cinchona Alkaloids. Cheminform. 34. DOI: 10.1002/chin.200341101 |
0.368 |
|
| 2003 |
Bisai A, Chandrasekhar M, Singh VK. An Alternative to the Swern Oxidation. Cheminform. 34. DOI: 10.1002/chin.200305049 |
0.515 |
|
| 2002 |
Chandra KL, Chandrasekhar M, Singh VK. Total synthesis of (-)- and (+)-lentiginosine. The Journal of Organic Chemistry. 67: 4630-3. PMID 12076173 DOI: 10.1021/Jo025677E |
0.485 |
|
| 2002 |
Chandrasekhar M, Chandra KL, Singh VK. An approach towards chiral 5-hydroxyalkyl butan-4-olides: total synthesis of (-)-muricatacin and related natural products Arkivoc. 2002. DOI: 10.3998/Ark.5550190.0003.705 |
0.401 |
|
| 2002 |
Chandra KL, Bisai A, Saravanan P, Singh VK. A One-Pot Synthesis of β-Chloro Acetates/Benzoates from Epoxides Journal of Chemical Research. 2002: 221-223. DOI: 10.3184/030823402103171924 |
0.693 |
|
| 2002 |
Bisai A, Chandrasekhar M, Singh VK. An alternative to the Swern oxidation Tetrahedron Letters. 43: 8355-8357. DOI: 10.1016/S0040-4039(02)02004-X |
0.643 |
|
| 2002 |
Anand R, Baktharaman S, Singh VK. Elaboration of a Baylis–Hillman adduct to (−)-acaterin and its diastereomer through ring closing metathesis Tetrahedron Letters. 43: 5393-5395. DOI: 10.1016/S0040-4039(02)01069-9 |
0.63 |
|
| 2002 |
Anand R, Pandey G, Singh VK. Silica gel induced cleavage of aziridines by aromatic amines under solvent free conditions Tetrahedron Letters. 43: 3975-3976. DOI: 10.1016/S0040-4039(02)00727-X |
0.383 |
|
| 2002 |
Chandrasekhar M, Chandra KL, Singh VK. An efficient strategy for the synthesis of 5-hydroxyalkylbutan-4-olides from D-mannitol: Total synthesis of (-)-muricatacin Tetrahedron Letters. 43: 2773-2775. DOI: 10.1016/S0040-4039(02)00375-1 |
0.367 |
|
| 2002 |
Bhanu Prasad B, Sanghi R, Singh VK. Studies on ring cleavage of aziridines with hydroxyl compounds Tetrahedron. 58: 7355-7363. DOI: 10.1016/S0040-4020(02)00609-9 |
0.415 |
|
| 2002 |
Saravanan P, Bisai A, Baktharaman S, Chandrasekhar M, Singh VK. Synthesis of chiral non-racemic 1,2-diamines from O-acetyl mandelic acid: Application in enantioselective deprotonation of epoxides and diethylzinc addition to aldehydes Tetrahedron. 58: 4693-4706. DOI: 10.1016/S0040-4020(02)00376-9 |
0.711 |
|
| 2002 |
Chandra KL, Saravanan P, Singh RK, Singh VK. Lewis acid catalyzed acylation reactions: scope and limitations Tetrahedron. 58: 1369-1374. DOI: 10.1016/S0040-4020(01)01229-7 |
0.455 |
|
| 2001 |
Chandra KL, Saravanan P, Singh VK. One-step conversion of silyl/THP ethers into the corresponding acetates Tetrahedron Letters. 42: 5309-5311. DOI: 10.1016/S0040-4039(01)00967-4 |
0.517 |
|
| 2001 |
Singh RP, Kamble RM, Chandra KL, Saravanan P, Singh VK. An efficient method for aromatic Friedel–Crafts alkylation, acylation, benzoylation, and sulfonylation reactions Tetrahedron. 57: 241-247. DOI: 10.1016/S0040-4020(00)01005-X |
0.374 |
|
| 2001 |
Singh RP, Kamble RM, Chandra KL, Saravanan P, Singh VK. ChemInform Abstract: An Efficient Method for Aromatic Friedel-Crafts Alkylation, Acylation, Benzoylation, and Sulfonylation Reactions. Cheminform. 32: no-no. DOI: 10.1002/chin.200116044 |
0.704 |
|
| 2001 |
Chandrasekhar M, Sekar G, Singh VK. ChemInform Abstract: An Efficient Method for Opening Nonactivated Aziridines with TMS Azide: Application in the Synthesis of Chiral 1,2-Diaminocyclohexane. Cheminform. 32: no-no. DOI: 10.1002/chin.200111045 |
0.353 |
|
| 2000 |
Chandra KL, Saravanan P, Singh VK. An Efficient Method For Diacetylation Of Aldehydes Synlett. 2000: 359-360. DOI: 10.1055/S-2000-6538 |
0.403 |
|
| 2000 |
Chandrasekhar M, Sekar G, Singh VK. An efficient method for opening nonactivated aziridines with TMS azide: application in the synthesis of chiral 1,2-diaminocyclohexane Tetrahedron Letters. 41: 10079-10083. DOI: 10.1016/S0040-4039(00)01793-7 |
0.483 |
|
| 2000 |
Chandrasekhar M, Raina S, Singh VK. Formal total synthesis of (+)-boronolide Tetrahedron Letters. 41: 4969-4971. DOI: 10.1016/S0040-4039(00)00749-8 |
0.406 |
|
| 2000 |
Bhanu Prasad B, Sekar G, Singh VK. An efficient method for the cleavage of aziridines using hydroxyl compounds Tetrahedron Letters. 41: 4677-4679. DOI: 10.1016/S0040-4039(00)00686-9 |
0.397 |
|
| 2000 |
Anand RV, Singh VK. ChemInform Abstract: Triphase Catalysis in Epoxidation of α,β-Enones with Polymer-Bound Quaternary Ammonium Salt. Cheminform. 31: no-no. DOI: 10.1002/chin.200040095 |
0.423 |
|
| 2000 |
Chandrasekhar M, Raina S, Singh VK. ChemInform Abstract: Formal Total Synthesis of (+)-Boronolide. Cheminform. 31: no-no. DOI: 10.1002/chin.200037233 |
0.325 |
|
| 1999 |
Sekar G, Singh VK. An Efficient Method for Cleavage of Epoxides with Aromatic Amines. The Journal of Organic Chemistry. 64: 287-289. PMID 11674115 DOI: 10.1021/Jo981196C |
0.659 |
|
| 1999 |
Anand RV, Saravanan P, Singh VK. Solvent Free Thioacetalization of Carbonyl Compounds Catalyzed by Cu(OTf)2-SiO2 Synlett. 1999: 415-416. DOI: 10.1055/S-1999-2635 |
0.359 |
|
| 1999 |
Sekar G, Singh VK. Efficient Method for Cleavage of Aziridines with Aromatic Amines The Journal of Organic Chemistry. 64: 2537-2539. DOI: 10.1021/Jo981869R |
0.369 |
|
| 1999 |
Saravanan P, Singh VK. An efficient method for acylation reactions Tetrahedron Letters. 40: 2611-2614. DOI: 10.1016/S0040-4039(99)00229-4 |
0.474 |
|
| 1998 |
Sekar G, DattaGupta A, Singh VK. Asymmetric Kharasch Reaction: Catalytic Enantioselective Allylic Oxidation of Olefins Using Chiral Pyridine Bis(diphenyloxazoline)−Copper Complexes andtert-Butyl Perbenzoate†,‡ The Journal of Organic Chemistry. 63: 2961-2967. DOI: 10.1021/Jo972132P |
0.508 |
|
| 1998 |
Saravanan P, Anand R, Singh VK. Cu(OTf)2 catalyzed trimethylsilyl cyanide addition to carbonyl compounds Tetrahedron Letters. 39: 3823-3824. DOI: 10.1016/S0040-4039(98)00594-2 |
0.525 |
|
| 1998 |
Saravanan P, Chandrasekhar M, Anand RV, Singh VK. An efficient method for deprotection of acetals Tetrahedron Letters. 39: 3091-3092. DOI: 10.1016/S0040-4039(98)00366-9 |
0.546 |
|
| 1998 |
Saravanan P, Singh VK. An Efficient Synthesis of Chiral Nonracemic Diamines: Application in Asymmetric Synthesis Tetrahedron Letters. 39: 167-170. DOI: 10.1016/S0040-4039(97)10578-0 |
0.497 |
|
| 1997 |
Saravanan P, Gupta S, DattaGupta A, Gupta S, Singh VK. Reductive Cleavage of tert-Butyldimethylsilyl Ether via Intramolecular Transfer of Hydride Synthetic Communications. 27: 2695-2699. DOI: 10.1080/00397919708004138 |
0.494 |
|
| 1997 |
Singh VK, DattaGupta A, Sekar G. Catalytic Enantioselective Cyclopropanation of Olefins Using Carbenoid Chemistry Synthesis. 1997: 137-149. DOI: 10.1055/S-1997-1172 |
0.486 |
|
| 1997 |
Yadav A, Singh VK. The antineoplastic behaviour of nitrosoureas: an ab initio study Journal of Molecular Structure-Theochem. 389: 191-198. DOI: 10.1016/S0166-1280(96)04638-6 |
0.309 |
|
| 1997 |
Saravanan P, DattaGupta A, Bhuniya D, Singh VK. Studies in the rearrangement of epoxides with lithium dialkylamide-lithium tert-butoxide Tetrahedron. 53: 1855-1860. DOI: 10.1016/S0040-4020(96)01102-7 |
0.407 |
|
| 1996 |
Bhuniya D, DattaGupta A, Singh VK. Design, Synthesis, and Application of Chiral Nonracemic Lithium Amide Bases in Enantioselective Deprotonation of Epoxides. The Journal of Organic Chemistry. 61: 6108-6113. PMID 11667443 DOI: 10.1021/Jo960244V |
0.539 |
|
| 1996 |
Raina S, Srivastava KK, Kumar ES, Singh VK. Facile Bromination of O-Benzylidene Sugar and THP Ethers with NBS in Chloroform in the Presence of AIBN Synthetic Communications. 26: 121-125. DOI: 10.1080/00397919608003870 |
0.382 |
|
| 1996 |
DattaGupta A, Singh R, Singh VK. A Mild and Efficient Method for the Cleavage of tert-Butyldimethylsilyl and Tetrahydropyranyl Ethers by Ceric Ammonium Nitrate in Methanol Synlett. 1996: 69-71. DOI: 10.1055/S-1996-5320 |
0.457 |
|
| 1996 |
Sekar G, DattaGupta A, Singh VK. Cu(OTf)2 - DBN/DBU complex as an efficient catalyst for allylic oxidation of olefins with tert-butyl perbenzoate Tetrahedron Letters. 37: 8435-8436. DOI: 10.1016/0040-4039(96)01911-9 |
0.422 |
|
| 1996 |
DattaGupta A, Singh VK. Catalytic enantioselective allylic oxidation of olefins with copper complexes of chiral nonracemic bis(oxazolinyl)pyridine type ligands Tetrahedron Letters. 37: 2633-2636. DOI: 10.1016/0040-4039(96)00347-4 |
0.508 |
|
| 1996 |
Raina S, Singh VK. Asymmetric synthesis of 5-hexadecanolide, pheromone of the queen of the Oriental hornet, Vespa orientalis Tetrahedron. 52: 4479-4484. DOI: 10.1016/0040-4020(96)00095-6 |
0.532 |
|
| 1995 |
Raina S, Singh VK. DDQ as a mild and efficient catalyst for deprotection of tetrahydropyranyl ethers Synthetic Communications. 25: 2395-2400. DOI: 10.1080/00397919508015442 |
0.314 |
|
| 1995 |
Corey EJ, Virgil SC, Cheng H, Baker CH, Matsuda SPT, Singh V, Sarshar S. New insights regarding the cyclization pathway for sterol biosynthesis from (S)-2,3-oxidosqualene Journal of the American Chemical Society. 117: 11819-11820. DOI: 10.1021/Ja00152A030 |
0.506 |
|
| 1995 |
Bhuniya D, Gupta AD, Singh VK. Synthesis of versatile intermediates for cyclopentanoid natural products via enantioselective deprotonation of substituted cyclopentene oxide Tetrahedron Letters. 36: 2847-2850. DOI: 10.1016/0040-4039(95)00364-I |
0.469 |
|
| 1995 |
Raina S, Singh VK. Reaction of epoxides with activated DMSO reagent. General method for synthesis of α-chlorocarbonyl compounds: Application in asymmetric synthesis of (3S)-2,3-oxidosqualene Tetrahedron. 51: 2467-2476. DOI: 10.1016/0040-4020(94)01111-C |
0.585 |
|
| 1994 |
Bhuniya D, Singh VK. Enantioselective Deprotonation of Cyclohexene Oxide to (R)-2-Cyclohexen-1-ol Synthetic Communications. 24: 1475-1481. DOI: 10.1080/00397919408011752 |
0.461 |
|
| 1994 |
Gupta AD, Bhuniya D, Singh VK. Synthesis of homochiral bis (oxazolinyl) pyridine type ligands for asymmetric cyclopropanation reactions Tetrahedron. 50: 13725-13730. DOI: 10.1016/S0040-4020(01)85684-2 |
0.387 |
|
| 1992 |
Singh VK. Practical and Useful Methods for the Enantioselective Reduction of Unsymmetrical Ketones Synthesis. 1992: 605-617. DOI: 10.1055/S-1992-26174 |
0.413 |
|
| 1992 |
Raina S, Bhuniya D, Singh VK. A mild method for conversion of epoxides into α-chloro ketones Tetrahedron Letters. 33: 6021-6022. DOI: 10.1016/S0040-4039(00)61116-4 |
0.465 |
|
| 1989 |
Carvalho C, Cullen WR, Fryzuk MD, Jacobs H, James BR, Kutney JP, Piotrowska K, Singh VK. The Chemistry of Thujone. Part XIV.. Synthesis of biologically active aryl terpenoid analogues Helvetica Chimica Acta. 72: 205-212. DOI: 10.1002/hlca.19890720204 |
0.578 |
|
| 1989 |
CARVALHO C, CULLEN WR, FRYZUK MD, JACOBS H, JAMES BR, KUTNEY JP, PIOTROWSKA K, SINGH VK. ChemInform Abstract: The Chemistry of Thujone. Part 14. Synthesis of Biologically Active Aryl Terpenoid Analogues. Cheminform. 20. DOI: 10.1002/chin.198925254 |
0.589 |
|
| 1989 |
MAHINDROO VK, SINGH V, DEV S. ChemInform Abstract: Castor Oil to Biologically Active Compounds. Part 5. Ricinoleic Acid to Prostaglandins. Part 3. A Two-Carbon Regiospecific Insertion: Synthesis of (.+-.)-Prostaglandin E1. Cheminform. 20. DOI: 10.1002/chin.198923311 |
0.496 |
|
| 1989 |
SWAMINATHAN S, SINGH VK, DEV S. ChemInform Abstract: Castor Oil to Biologically Active Compounds. Part 3. Ricinoleic Acid to Prostaglandins. Part 1. Synthesis of Methyl 2-(6′-Methoxycarbonylhexyl)-cyclopent-2-en-1-one-3-carboxylate and PGE1. Cheminform. 20. DOI: 10.1002/chin.198923309 |
0.521 |
|
| 1988 |
COREY EJ, BAKSHI RK, SHIBATA S, CHEN C, SINGH VK. ChemInform Abstract: A Stable and Easily Prepared Catalyst for the Enantioselective Reduction of Ketones. Applications to Multistep Syntheses. Cheminform. 19. DOI: 10.1002/chin.198813115 |
0.331 |
|
| 1987 |
Corey EJ, Bakshi RK, Shibata S, Chen CP, Singh VK. A stable and easily prepared catalyst for the enantioselective reduction of ketones. Applications to multistep syntheses Journal of the American Chemical Society. 109: 7925-7926. DOI: 10.1021/Ja00259A075 |
0.567 |
|
| 1986 |
Benn MH, Singh VK. A simple, biogenetically modeled synthesis of 4-(methylthio)butyl thiocyanate: the reaction of thiocyanate anion with S-methyl-(1,n)-epithionium ions Canadian Journal of Chemistry. 64: 940-942. DOI: 10.1139/v86-156 |
0.606 |
|
| 1978 |
MEHTA G, GHOSH P, CHAUDHURI B, SINGH VK, USHA R, VARUGHESE KI, VENKATESAN K. ChemInform Abstract: NOVEL C10 CARBOCYCLIC SYSTEMS VIA SCHMIDT FRAGMENTATION OF PENTACYCLO(5.4.0.02,6.03,10.05,9)UNDECANE-8,11-DIONE Chemischer Informationsdienst. 9. DOI: 10.1002/chin.197806136 |
0.319 |
|
| 1977 |
Mehta G, Ghosh P, Chaudhuri B, Singh V, Usha R, Varughese K, Venkatesan K. Novel C10 carbocyclic systems schmidt fragmentation of pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione Tetrahedron Letters. 18: 4109-4112. DOI: 10.1016/S0040-4039(01)83440-7 |
0.387 |
|
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