Synthesis of novel functionalized 3-spiropyrrolizidine and 3-spiropyrrolidine oxindoles from baylis− hillman adducts of isatin and heteroaldehydes with azomethine ylides via … P Shanmugam, B Viswambharan, S Madhavan Organic Letters 9 (21), 4095-4098, 2007 | 163 | 2007 |
Pyridine Core Activation via 1,5-Electrocyclization of Vinyl Pyridinium Ylides Generated from Bromo Isomerized Morita−Baylis−Hillman Adduct of Isatin and Pyridine … B Viswambharan, K Selvakumar, S Madhavan, P Shanmugam Organic Letters 12 (9), 2108-2111, 2010 | 94 | 2010 |
A facile and efficient synthesis of highly functionalised 3, 3′-dispiropyrrolidine-and 3, 3′-dispiropyrrolizidine bisoxindoles via [3+ 2] cycloaddition P Shanmugam, B Viswambharan, K Selvakumar, S Madhavan Tetrahedron Letters 49 (16), 2611-2615, 2008 | 74 | 2008 |
Synthesis of functionalized 3-spirocyclopropane-2-indolones from isomerised Baylis–Hillman adducts of isatin P Shanmugam, V Vaithiyanathan, B Viswambharan Tetrahedron 62 (18), 4342-4348, 2006 | 69 | 2006 |
Synthesis and Catalytic Properties of 4-Aryl-2,3-dihydro-4H-pyrimido[2,3-b]benzothiazoles for Asymmetric Acyl or Carboxyl Group Transfer Reactions B Viswambharan, T Okimura, S Suzuki, S Okamoto The Journal of Organic Chemistry 76 (16), 6678-6685, 2011 | 55 | 2011 |
Substrate Control in Enantioselective and Diastereoselective Aldol Reaction by Memory of Chirality: A Rapid Access to Enantiopure β-Hydroxy Quaternary α-Amino Acids B Viswambharan, D Gori, R Guillot, C Kouklovsky, V Alezra Organic letters 16 (3), 788-791, 2014 | 30 | 2014 |
A facile and efficient stereoselective synthesis of highly functionalised trisubstituted alkene derivatives of ferrocenealdehyde P Shanmugam, V Vaithiyanathan, B Viswambharan, S Madhavan Tetrahedron Letters 48 (52), 9190-9194, 2007 | 23 | 2007 |
Activation of the NC–H bond of Baylis–Hillman adducts of N-methylisatin with CAN/ROH P Shanmugam, V Vaithiyanathan, B Viswambharan Tetrahedron letters 47 (38), 6851-6855, 2006 | 22 | 2006 |
A Short and Efficient Synthesis of 3-Spiro-α-methylene-γ-butyrolactone Oxindolones from Isomerised Bromo Derivatives of Morita-Baylis-Hillman Adducts P Shanmugam, B Viswambharan Synlett 2008 (18), 2763-2768, 2008 | 20 | 2008 |
A Facile and Efficient Synthesis of Functionalized γ-Butyrolactones from Baylis–Hillman Adducts of Isatin P Shanmugam, V Vaithiyanathan, B Viswambharan Australian journal of chemistry 60 (4), 296-301, 2007 | 18 | 2007 |
Memory of Chirality of Tertiary Aromatic Amide: Application to the Asymmetric Synthesis of (S)-α-MethylDOPA TT Mai, B Viswambharan, D Gori, C Kouklovsky, V Alezra The Journal of Organic Chemistry 77 (19), 8797-8801, 2012 | 15 | 2012 |
A first one-pot synthesis, isomerization and synthetic utility of mono-and bis Morita–Baylis–Hillman adducts of 1, 1′-ferrocenedialdehyde P Shanmugam, S Madhavan, K Selvakumar, V Vaithiyanathan, ... Tetrahedron Letters 50 (19), 2213-2218, 2009 | 8 | 2009 |
Synthesis of 3‐Heteroaryl‐Substituted Tetrahydrofurans from the Baylis–Hillman Adducts of Heteroarylaldehydes by n‐Bu3SnH‐Mediated 5‐exo‐trig Vinyl Radical Cyclization P Shanmugam, P Rajasingh, B Viswambharan, V Vaithiyanathan Synthetic Communications 37 (14), 2291-2299, 2007 | 7 | 2007 |
Frozen Chirality of Tertiary Aromatic Amides: Access to Enantioenriched Tertiary α-Amino Acid or Amino Alcohol without Chiral Reagent. TT Mai, B Viswambharan, D Gori, R Guillot, JV Naubron, C Kouklovsky, ... Chemistry-A European Journal 23 (24), 2017 | 6 | 2017 |
Silica Chloride-Catalyzed One-Pot Isomerization–Chlorination, Arylation, and Etherification of Baylis–Hillman Adducts P Shanmugam, B Viswambharan, V Vaithiyanathan Australian Journal of Chemistry 60 (11), 850-856, 2007 | 4 | 2007 |
Synthesis of highly functionalised linear pentacyclic compounds from Baylis-Hillman adduct of heteroaldehydes with azomethine ylides via [3+ 2] cycloaddition P Shanmugam, S Madhavan, B Viswambharan, V Vaithiyanathan CSIR, 2008 | 2 | 2008 |
Highly Stereoselective Aldol Reactions by Memory of Chirality: Synthesis of Quaternary β‐Hydroxy α‐Amino Acids L Roupnel, R Guillot, D Gori, B Viswambharan, C Kouklovsky, V Alezra Helvetica Chimica Acta 104 (10), e2100127, 2021 | | 2021 |
A first one-pot synthesis, isomerization and synthetic utility of mono-and bis Morita-Baylis-Hillman adducts of 1, 1'-ferrocenedialdehyde V Vaithiyanathan, M Suchithra, K Selvakumar, P Shanmugam, ... Elsevier, 2009 | | 2009 |
Synthesis of novel 3-spiro heterocyclic oxindoles and silicachloride mediated synthetic transformations of morita-baylis-hillman adducts B Viswambharan Chemical Sciences and Technology Division, National Institute for …, 2009 | | 2009 |
Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram P Shanmugam, B Viswambharan, V Vaithiyanathan | | |