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JOHN KALLIKAT Augustine
JOHN KALLIKAT Augustine
Syngene International Ltd, Bangalore, India
Verified email at syngeneintl.com
Title
Cited by
Cited by
Year
An efficient catalytic method for the Beckmann rearrangement of ketoximes to amides and aldoximes to nitriles mediated by propylphosphonic anhydride (T3P®)
JK Augustine, R Kumar, A Bombrun, AB Mandal
Tetrahedron Letters 52 (10), 1074-1077, 2011
1632011
Propylphosphonic anhydride (T3P®): an efficient reagent for the one-pot synthesis of 1, 2, 4-oxadiazoles, 1, 3, 4-oxadiazoles, and 1, 3, 4-thiadiazoles
JK Augustine, V Vairaperumal, S Narasimhan, P Alagarsamy, ...
Tetrahedron 65 (48), 9989-9996, 2009
1472009
PTSA−ZnCl2: An Efficient Catalyst for the Synthesis of 1,2,4-Oxadiazoles from Amidoximes and Organic Nitriles
JK Augustine, V Akabote, SG Hegde, P Alagarsamy
The Journal of Organic Chemistry 74 (15), 5640-5643, 2009
1412009
An efficient one-pot synthesis of coumarins mediated by propylphosphonic anhydride (T3P) via the Perkin condensation
JK Augustine, A Bombrun, B Ramappa, C Boodappa
Tetrahedron Letters 53 (33), 4422-4425, 2012
1102012
gem-Dibromomethylarenes:  A Convenient Substitute for Noncommercial Aldehydes in the Knoevenagel−Doebner Reaction for the Synthesis of α,β-Unsaturated …
JK Augustine, YA Naik, AB Mandal, N Chowdappa, VB Praveen
The Journal of organic chemistry 72 (25), 9854-9856, 2007
712007
Propylphosphonic anhydride (T3P®): A remarkably efficient reagent for the one-pot transformation of aromatic, heteroaromatic, and aliphatic aldehydes to nitriles
JK Augustine, RN Atta, BK Ramappa, C Boodappa
Synlett 2009 (20), 3378-3382, 2009
692009
A practical and cost-efficient, one-pot conversion of aldehydes into nitriles mediated by ‘activated DMSO’
JK Augustine, A Bombrun, RN Atta
Synlett 2011 (15), 2223-2227, 2011
532011
An efficient catalytic method for the Friedländer annulation mediated by peptide coupling agent propylphosphonic anhydride (T3P®)
JK Augustine, A Bombrun, S Venkatachaliah
Tetrahedron letters 52 (50), 6814-6818, 2011
402011
Discovery of potent, selective, and orally bioavailable alkynylphenoxyacetic acid CRTH2 (DP2) receptor antagonists for the treatment of allergic inflammatory diseases
S Crosignani, A Prêtre, C Jorand-Lebrun, G Fraboulet, J Seenisamy, ...
Journal of medicinal chemistry 54 (20), 7299-7317, 2011
372011
Selective synthesis of 5, 6-dihydrophenanthridines, 5, 6-dihydrobenzo [c][1, 8] naphthyridines and their fully aromatized analogues via the Pictet–Spengler reaction mediated by …
JK Augustine, A Bombrun, P Alagarsamy, A Jothi
Tetrahedron Letters 53 (46), 6280-6287, 2012
342012
Titanium mediated olefination of aldehydes with α-haloacetates: an exceptionally stereoselective and general approach to (Z)-α-haloacrylates
JK Augustine, A Bombrun, S Venkatachaliah, A Jothi
Organic & Biomolecular Chemistry 11 (46), 8065-8072, 2013
332013
Highly efficient and chemoselective acetalization and thioacetalization of aldehydes catalyzed by propylphosphonic anhydride (® T3P) at room temperature
JK Augustine, A Bombrun, WHB Sauer, P Vijaykumar
Tetrahedron Letters 53 (37), 5030-5033, 2012
332012
Propylphosphonic anhydride (T3P®)-mediated one-pot rearrangement of carboxylic acids to carbamates
JK Augustine, A Bombrun, AB Mandal, P Alagarsamy, RN Atta, P Selvam
Synthesis 2011 (09), 1477-1483, 2011
292011
The expedient access to bromo-pyridine carbaldehyde scaffolds using gem-dibromomethyl intermediates
AB Mandal, JK Augustine, A Quattropani, A Bombrun
Tetrahedron letters 46 (36), 6033-6036, 2005
292005
α-Haloacrylates as acceptors in the [3+ 2] cycloaddition reaction with NaN 3: an expedient approach to N-unsubstituted 1, 2, 3-triazole-4-carboxylates
JK Augustine, C Boodappa, S Venkatachaliah
Organic & Biomolecular Chemistry 12 (14), 2280-2288, 2014
212014
A versatile method for the hydrolysis of gem-dibromomethylarenes bearing carboxylate or boronate group into aldehydes
JK Augustine, YA Naik, AB Mandal, N Chowdappa, VB Praveen
Tetrahedron 64 (4), 688-695, 2008
192008
Regioselective Synthesis of 2,8-Disubstituted 4-Aminopyrido[3,2-d]pyrimidine-6-carboxylic Acid Methyl Ester Compounds
G Bouscary-Desforges, A Bombrun, JK Augustine, G Bernardinelli, ...
The Journal of organic chemistry 77 (1), 243-252, 2012
172012
TiCl4-mediated olefination of aldehydes with acetic acid and alkyl acetates: a stereoselective approach to (E)-α, β-unsaturated carboxylic acids and esters
JK Augustine, C Boodappa, S Venkatachaliah, A Mariappan
Tetrahedron Letters 55 (24), 3503-3506, 2014
162014
Access and Regioselective Transformations of 6-Substituted 4-Aryl-2,8-dichloropyrido[3,2-d]pyrimidine Compounds
G Bouscary-Desforges, A Bombrun, JK Augustine, G Bernardinelli, ...
The Journal of organic chemistry 77 (10), 4586-4595, 2012
132012
gem-Dibromomethyl Aromatics: Efficient Aldehyde Equivalents in the Knoevenagel-Doebner Reaction
JK Augustine, YA Naik, S Poojari, N Chowdappa, BS Sherigara, K Areppa
Synthesis 2009 (14), 2349-2356, 2009
13*2009
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