Items where Author is "Chandrasekaran, Srinivasan"

Article

Chandrasekaran, Srinivasan ; Chandrasekhar, Srivari ; Verma, Sandeep (2019) Editorial: Der “National Organic Symposium Trust” – seit über 30 Jahren prägend für die organische Chemie in Indien Angewandte Chemie, 131 (28). pp. 9394-9395. ISSN 0044-8249

Chandrasekaran, Srinivasan ; Chandrasekhar, Srivari ; Verma, Sandeep (2019) Editorial: The National Organic Symposium Trust—Shaping Organic Chemistry in India for Over 30 Years Angewandte Chemie International Edition, 58 (28). pp. 9294-9295. ISSN 1433-7851

Gopinath, Purushothaman ; Debasree, Chanda ; Vidyarini, Ravindran Sasitha ; Chandrasekaran, Srinivasan (2010) Synthesis of S-functionalized thioesters using thioaroylate ions derived from carboxylic acids and tetrathiomolybdate via acyloxyphosphonium intermediates Tetrahedron, 66 (34). pp. 7001-7011. ISSN 0040-4020

Ramapanicker, Ramesh ; Mishra, Roli ; Chandrasekaran, Srinivasan (2010) An improved procedure for the synthesis of dehydroamino acids and dehydropeptides from the carbonate derivatives of serine and threonine using tetrabutylammonium fluoride Journal of Peptide Science, 16 (3). pp. 123-125. ISSN 1075-2617

Baig, Nasir Baig Rashid ; Chandrakala, R. N. ; Sudhir, V. Sai ; Chandrasekaran, Srinivasan (2010) Synthesis of unnatural selenocystines and β-aminodiselenides via regioselective ring-opening of sulfamidates using a sequential, one-pot, multistep strategy Journal of Organic Chemistry, 75 (9). pp. 2910-2921. ISSN 0022-3263

Sureshkumar, Devarajulu ; Koutha, Srinivasamurthy ; Ganesh, Venkataraman ; Chandrasekaran, Srinivasan (2010) Tetrathiomolybdate mediated rearrangement of aziridinemethanol tosylates: a thia-aza-payne rearrangement Journal of Organic Chemistry, 75 (16). pp. 5533-5541. ISSN 0022-3263

Chakrabarty, Subhra Prakash ; Ramapanicker, Ramesh ; Mishra, Roli ; Chandrasekaran, Srinivasan ; Balaram, Hemalatha (2009) Development and characterization of lysine based tripeptide analogues as inhibitors of Sir2 activity Bioorganic & Medicinal Chemistry, 17 (23). pp. 8060-8072. ISSN 0968-0896

Ramapanicker, Ramesh ; Baig, Nasir Baig Rashid ; De, Kavita ; Chandrasekaran, Srinivasan (2009) One-pot protection and activation of amino acids using pentafluorophenyl carbonates Journal of Peptide Science, 15 (12). pp. 849-855. ISSN 1075-2617

Gopinath, Purushothaman ; Vidyarini, Ravindran Sasitha ; Chandrasekaran, Srinivasan (2009) Synthesis of thioesters by simultaneous activation of carboxylic acids and alcohols using PPh₃/NBS with benzyltriethylammonium tetrathiomolybdate as the sulfur transfer reagent European Journal of Organic Chemistry, 2009 (34). pp. 6043-6047. ISSN 1434-193X

Sudhir, V. Sai ; Baig, Nasir Baig Rashid ; Chandrasekaran, Srinivasan (2009) Convenient synthesis of ferrocene conjugates mediated by benzyltriethylammonium tetrathiomolybdate in a multi-step tandem process European Journal of Organic Chemistry, 2009 (31). pp. 5365-5372. ISSN 1434-193X

Sureshkumar, Devarajulu ; Ganesh, Venkataraman ; Vidyarini, Ravindran Sasitha ; Chandrasekaran, Srinivasan (2009) Direct synthesis of functionalized unsymmetrical β-sulfonamido disulfides by tetrathiomolybdate mediated aziridine ring-opening reactions Journal of Organic Chemistry, 74 (20). pp. 7958-7961. ISSN 0022-3263

Sudhir, V. Sai ; Venkateswarlu, Ch. ; Musthafa, O. T. Muhammed ; Sampath, S. ; Chandrasekaran, Srinivasan (2009) Click chemistry inspired synthesis of novel ferrocenyl-substituted amino acids or peptides European Journal of Organic Chemistry, 2009 (13). pp. 2120-2129. ISSN 1434-193X

Sudhir, V. Sai ; Phani Kumar, N. Y. ; Baig, R. B. Nasir ; Chandrasekaran, Srinivasan (2009) Facile entry into triazole fused heterocycles via sulfamidate derived azido-alkynes Journal of Organic Chemistry, 74 (19). pp. 7588-7591. ISSN 0022-3263

Baig, R. B. Nasir ; Kanimozhi, Catherine K. ; Sudhir, V. Sai ; Chandrasekaran, Srinivasan (2009) Facile synthesis of β-amino disulfides, cystines, and their direct incorporation into peptides Synlett (8). pp. 1227-1232. ISSN 0936-5214

Gopinath, Purushothaman ; Vidyarini, Ravindran Sasitha ; Chandrasekaran, Srinivasan (2009) Synthesis of thioesters from carboxylic acids via acyloxyphosphonium intermediates with benzyltriethylammonium tetrathiomolybdate as the sulfur transfer reagent Journal of Organic Chemistry, 74 (16). pp. 6291-6294. ISSN 0022-3263

Haveli, Shrutisagar Dattatraya ; Roy, Sudipta ; Chandrasekaran, Srinivasan (2009) Synthesis of unnatural C-2 amino acid nucleosides using NIS-mediated ring opening of 1,2-cyclopropane carboxylated sugar derivatives Synlett (3). pp. 451-455. ISSN 0936-5214

Baig, R. B. Nasir ; Sudhir, V. Sai ; Chandrasekaran, Srinivasan (2008) Simple and efficient synthesis of allo- and threo-3,3'-dimethylcystine derivatives in enantiomerically pure form Tetrahedron: Asymmetry, 19 (12). pp. 1425-1429. ISSN 0957-4166

Sudhir, V. Sai ; Baig, R. B. Nasir ; Chandrasekaran, Srinivasan (2008) Facile entry to 4,5,6,7-tetrahydro[1,2,3]triazolo[1,5-α]pyrazin-6-ones from amines and amino acids European Journal of Organic Chemistry, 2008 (14). pp. 2423-2429. ISSN 1434-193X

Ramesh, Ramapanicker ; De, Kavita ; Gupta, Shipra ; Chandrasekaran, Srinivasan (2008) Propargyloxycarbonyl as a protecting group for the side chains of serine, threonine and tyrosine Journal of Chemical Sciences, 120 (1). pp. 163-173. ISSN 0253-4134

Sivapriya, Kirubakaran ; Suguna, Perumal ; Banerjee, Arun ; Saravanan, Vadivelu ; Rao, Desirazu N. ; Chandrasekaran, Srinivasan (2007) Facile one-pot synthesis of thio and selenourea derivatives: a new class of potent urease inhibitors Bioorganic & Medicinal Chemistry Letters, 17 (22). pp. 6387-6391. ISSN 0960-894X

Ramesh, Ramapanicker ; De, Kavita ; Chandrasekaran, Srinivasan (2007) An efficient synthesis of dehydroamino acids and dehydropeptides from O-Cbz and O-Eoc derivatives of serine and threonine Tetrahedron, 63 (42). pp. 10534-10542. ISSN 0040-4020

Ramesh, Ramapanicker ; Chandrasekaran, Yogesh ; Megha, Rajendran ; Chandrasekaran, Srinivasan (2007) Base catalyzed cyclization of N-aryl and N-alkyl-O-propargyl carbamates to 4-alkylidene-2-oxazolidinones Tetrahedron, 63 (37). pp. 9153-9162. ISSN 0040-4020

Sureshkumar, Devarajulu ; Koutha, Srinivasamurthy ; Chandrasekaran, Srinivasan (2007) A new selena-aza-payne-type rearrangement of aziridinylmethyl tosylates mediated by tetraselenotungstate European Journal of Organic Chemistry, 2007 (27). pp. 4543-4551. ISSN 1434-193X

Voggu, Rakesh ; Suguna, Perumal ; Chandrasekaran, Srinivasan ; Rao, C. N. R. (2007) Assembling covalently linked nanocrystals and nanotubes through click chemistry Chemical Physics Letters, 443 (1-3). pp. 118-121. ISSN 0009-2614

Haveli, Shrutisagar Dattatraya ; Sridhar, Perali Ramu ; Suguna, Perumal ; Chandrasekaran, Srinivasan (2007) Efficient synthesis of fused perhydrofuro[2,3-b]pyrans (and furans) by ring opening of 1,2-cyclopropanated sugar derivatives Organic Letters, 9 (7). pp. 1331-1334. ISSN 1523-7060

Choudhury, Angshuman R. ; Bhat, Ramakrishna G. ; Guru Row, Tayur N. ; Chandrasekaran, Srinivasan (2007) Weak C_sp3-H···F-C interaction overshadows the strong C≡C-H···O=C hydrogen bond: structure of pentafluorophenyl prop-2-ynyl carbonate Crystal Growth & Design, 7 (5). pp. 844-846. ISSN 1528-7483

Sureshkumar, Devarajulu ; Maity, Susama ; Chandrasekaran, Srinivasan (2006) Regio- and stereoselective synthesis of aziridino epoxides from cyclic dienes Journal of Organic Chemistry, 71 (4). pp. 1653-1657. ISSN 0022-3263

Ramesh, R. ; Bhat, Ramakrishna G. ; Chandrasekaran, Srinivasan (2005) Highly selective deblocking of propargyl carbonates in the presence of propargyl carbamates with tetrathiomolybdate Journal of Organic Chemistry, 70 (3). pp. 837-840. ISSN 0022-3263

Sridhar, Perali Ramu ; Prabhu, Kandikere Ramaiah ; Chandrasekaran, Srinivasan (2004) Synthesis of thioglycosides by tetrathiomolybdate-mediated michael additions of masked thiolates European Journal of Organic Chemistry, 2004 (23). pp. 4809-4815. ISSN 1434-193X

Dhar, Dwairath ; Beadham, Ian ; Chandrasekaran, Srinivasan (2003) Proline and benzylpenicillin derivatives grafted into mesoporous MCM-41: novel organic-inorganic hybrid catalysts for direct aldol reaction Proceedings of the Indian Academy of Sciences - Chemical Sciences, 115 (5-6). pp. 365-372. ISSN 0253-4134

Bhat, Ramakrishna G. ; Porhiel, Emmanuel ; Saravanan, Vadivelu ; Chandrasekaran, Srinivasan (2003) Utility of tetrathiomolybdate and tetraselenotungstate: efficient synthesis of cystine, selenocystine, and their higher homologues Tetrahedron Letters, 44 (28). pp. 5251-5253. ISSN 0040-4039

Saravanan, Vadivelu ; Porhiel, Emmanuel ; Chandrasekaran, Srinivasan (2003) Tetraethylammonium tetraselenotungstate: a new and efficient selenium transfer reagent for the chemoselective synthesis of functionalised diselenides Tetrahedron Letters, 44 (11). pp. 2257-2260. ISSN 0040-4039

Dhar, Dwairath ; Koltypin, Yuri ; Gedanken, Aharon ; Chandrasekaran, Srinivasan (2003) Catalytic aerobic epoxidation of olefins by nanostructured amorphous CoO-MCM-41 Catalysis Letters, 86 (4). pp. 197-200. ISSN 1011-372X

Sudharsanam, Ramanathan ; Chandrasekaran, Srinivasan ; Das, Puspendu Kumar (2003) Oxygen bridged nitroanilines for quadratic nonlinear optics Journal of Molecular Structure, 645 (1). pp. 51-59. ISSN 0022-2860

Sridhar, Perali Ramu ; Prabhu, Kandikere Ramaiah ; Chandrasekaran, Srinivasan (2003) Selective reduction of anomeric azides to amines with tetrathiomolybdate: synthesis of β-d-glycosylamines Journal of Organic Chemistry, 68 (13). pp. 5261-5264. ISSN 0022-3263

Devan, Naduthambi ; Sridhar, Perali Ramu ; Prabhu, Kandikere Ramaiah ; Chandrasekaran, Srinivasan (2002) Tetrathiomolybdate assisted epoxide ring opening with masked thiolates and selenoates: multistep reactions in one pot Journal of Organic Chemistry, 67 (26). pp. 9417-9420. ISSN 0022-3263

Sudharsanam, Ramanathan ; Chandrasekaran, Srinivasan ; Das, Puspendu Kumar (2002) Aryl monosulphides and symmetrical disulphides based second order nonlinear optical chromophores with transparency in the visible Indian Journal of Chemistry, 41A . pp. 1763-1766. ISSN 0019-5103

Bhat, Ramakrishna G. ; Kerouredan, Erwan ; Porhiel, Emmanuel ; Chandrasekaran, Srinivasan (2002) Synthesis and applications of propargyl pentafluorophenyl carbonate for peptide synthesis Tetrahedron Letters, 43 (13). pp. 2467-2469. ISSN 0040-4039

Bhat, Ramakrishna G. ; Sinha, Surajit ; Chandrasekaran, Srinivasan (2002) Propargyloxycarbonyl (Poc) amino acid chlorides as efficient coupling reagents for the synthesis of 100% diastereopure peptides and resin bound tetrathiomolybdate as an effective deblocking agent for the Poc group Chemical Communications (8). pp. 812-813. ISSN 1359-7345

Sudharsanam, Ramanathan ; Chandrasekaran, Srinivasan ; Das, Puspendu Kumar (2002) Unsymmetrical aryl disulfides with excellent transparency in the visible region for second order nonlinear optics Journal of Materials Chemistry, 12 (10). pp. 2904-2908. ISSN 0959-9428

Perkas, Nina ; Wang, Yanqin ; Koltypin, Yuri ; Gedanken, Aharon ; Chandrasekaran, Srinivasan (2001) Mesoporous iron-titania catalyst for cyclohexane oxidation Chemical Communications (11). pp. 988-989. ISSN 1359-7345

Prabhu, Kandikere Ramaiah ; Sivanand, Pennadam S. ; Chandrasekaran, Srinivasan (2000) A tandem sulfur transfer/reduction/michael addition mediated by benzyltriethylammonium tetrathiomolybdate Angewandte Chemie, 112 (23). pp. 4486-4489. ISSN 0044-8249

Sinha, Surajit ; Mandal, Bhubaneswar ; Chandrasekaran, Srinivasan (2000) Synthesis of ethyl arylacetates by means of Friedel-Crafts reactions of aromatic compounds with ethyl α-chloro-α-(ethylthio) acetate catalysed by ytterbium triflate Tetrahedron Letters, 41 (47). pp. 9109-9112. ISSN 0040-4039

Kesavan, Venkitasamy ; Bonnet-Delpon, Danièle ; Begue, Jean-Pierre ; Srikanth, Abirami ; Chandrasekaran, Srinivasan (2000) New catalytic oxidation of trifluoromethyl carbinols by a ruthenium(II) complex Tetrahedron Letters, 41 (18). pp. 3327-3330. ISSN 0040-4039

Sinha, Surajit ; Mandal, Bhubaneswar ; Chandrasekaran, Srinivasan (2000) Selective para metalation of unprotected 3-methoxy and 3,5-dimethoxy benzoic acids with n-butyl lithium-potassium tert-butoxide (LIC-KOR): synthesis of 3,5-dimethoxy-4-methyl benzoic acid Tetrahedron Letters, 41 (17). pp. 3157-3160. ISSN 0040-4039

Kesavan, Venkitasamy ; Sivanand, Pennadam S. ; Chandrasekaran, Srinivasan ; Koltypin, Yuri ; Gedanken, Aharon (1999) Catalytic aerobic oxidation of cycloalkanes with nanostructured amorphous metals and alloys Angewandte Chemie International Edition, 38 (23). pp. 3521-3523. ISSN 1433-7851

Sinha, Surajit ; Ilankumaran, Palanichamy ; Chandrasekaran, Srinivasan (1999) The prop-2-ynyloxy carbonyl function (POC): a new amino-protecting group removable from sulfur-containing peptides by ultrasonic irradiation with tetrathiomolybdate under mild and neutral conditions Tetrahedron Letters, 40 (4). pp. 771-774. ISSN 0040-4039

Kesavan, Venkitasamy ; Chandrasekaran, Srinivasan (1998) A highly β-stereoselective catalytic epoxidation of Δ⁵-unsaturated steroids with a novel ruthenium (II) complex under aerobic conditions Journal of Organic Chemistry, 63 (20). pp. 6999-7001. ISSN 0022-3263

Ilankumaran, Palanichamy ; Prabhu, Kandikere R. ; Chandrasekaran, Srinivasan (1997) Sulfur transfer reactions of tetrathiomolybdate in water: synthesis of alkyl disulfides from alkyl halides Synthetic Communications, 27 (23). pp. 4031-4034. ISSN 0039-7911

Bhar, Debjani ; Chandrasekaran, Srinivasan (1997) A simple synthesis of sugar disulfides using tetrathiomolybdate as a sulfur-transfer reagent Carbohydrate Research, 301 (3-4). pp. 221-224. ISSN 0008-6215

Kesavan, Venkitasamy ; Chandrasekaran, Srinivasan (1997) Stereospecific and regioselective catalytic epoxidation of alkenes by a novel ruthenium(II) complex under aerobic conditions Journal of the Chemical Society, Perkin Transactions 1 (21). pp. 3115-3116. ISSN 0300-922X

Ravikumar, K. S. ; Chandrasekaran, Srinivasan (1996) Reaction of diisopropoxytitanium(III) tetrahydroborate with selected organic compounds containing representative functional groups Journal of Organic Chemistry, 61 (3). pp. 826-830. ISSN 0022-3263

Ilankumaran, Palanichamy ; Ramesha, A. R. ; Chandrasekaran, Srinivasan (1995) A facile conversion of amides and lactams to thioamides and thiolactams using tetrathiomolybdate Tetrahedron Letters, 36 (45). pp. 8311-8314. ISSN 0040-4039

Ramesha, A. R. ; Bhat, Shridhar ; Chandrasekaran, Srinivasan (1995) Reaction of azides with tetrathiomolybdate: reduction and imine formation Journal of Organic Chemistry, 60 (23). pp. 7682-7683. ISSN 0022-3263

Prabhu, Kandikere R. ; Ramesha, A. R. ; Chandrasekaran, Srinivasan (1995) Reductive dimerization of organic thiocyanates to disulfides mediated by tetrathiomolybdate Journal of Organic Chemistry, 60 (22). pp. 7142-7143. ISSN 0022-3263

Ilankumaran, Palanichamy ; Chandrasekaran, Srinivasan (1995) Chemoselective deoxygenation of nitrones and N-oxides with tetrathiomolybdate Tetrahedron Letters, 36 (27). pp. 4881-4882. ISSN 0040-4039

Ramesha, A. R. ; Chandrasekaran, Srinivasan (1994) A facile entry to macrocyclic disulfides: an efficient synthesis of redox-switched crown ethers Journal of Organic Chemistry, 59 (6). pp. 1354-1357. ISSN 0022-3263

Ravikumar, K. S. ; Baskaran, Sundarababu ; Chandrasekaran, Srinivasan (1993) Diisopropoxytitanium(III) tetrahydroborate: a highly useful reagent for the remarkably selective 1,2-reduction of α,β-unsaturated carbonyl compounds Journal of Organic Chemistry, 58 (22). pp. 5981-5982. ISSN 0022-3263

Dhar, Preeti ; Chidambaram, Nallaperumal ; Chandrasekaran, Srinivasan (1992) Piperidinium tetrathiotungstate as sulfur transfer reagent: synthesis of cyclic disulfides Journal of Organic Chemistry, 57 (6). pp. 1699-1702. ISSN 0022-3263

Syamala, M. S. ; Das, Jagattaran ; Baskaran, Sundarababu ; Chandrasekaran, Srinivasan (1992) A novel and highly β-selective epoxidation of Δ⁵-unsaturated steroids with permanganate ion Journal of Organic Chemistry, 57 (6). pp. 1928-1930. ISSN 0022-3263

Baskaran, Sundarababu ; Islam, Imadul ; Vankar, Padma S. ; Chandrasekaran, Srinivasan (1992) Heterogeneous permanganate oxidation of 1,5-dienes: a novel synthesis of 5-substituted butanolides Journal of the Chemical Society, Chemical Communications (8). pp. 626-627. ISSN 0022-4936

Dhar, Preeti ; Ranjan, Rajeev ; Chandrasekaran, Srinivasan (1990) Chemistry of tetrathiotungstates. A novel synthesis of disulfides from sulfonyl derivatives Journal of Organic Chemistry, 55 (12). pp. 3728-3729. ISSN 0022-3263

Baskaran, Sundarababu ; Islam, Imadul ; Chandrasekaran, Srinivasan (1990) A general approach to the synthesis of butanolides: synthesis of the sex pheromone of the Japanese beetle Journal of Organic Chemistry, 55 (3). pp. 891-895. ISSN 0022-3263

Baskaran, Sundarababu ; Islam, Imadul ; Vankar, Padma S. ; Chandrasekaran, Srinivasan (1990) The key role of water in the heterogeneous permanganate oxidation of ω-hydroxy alkenes Journal of the Chemical Society, Chemical Communications (23). pp. 1670-1671. ISSN 0022-4936

Baskaran, Sundarababu ; Das, Jagattaran ; Chandrasekaran, Srinivasan (1989) Heterogeneous permanganate oxidations: an improved procedure for the direct conversion of olefins to α-diketones/α-hydroxy ketones Journal of Organic Chemistry, 54 (21). pp. 5182-5184. ISSN 0022-3263

Dhar, Preeti ; Chandrasekaran, Srinivasan (1989) Novel alkylation with tetrathiotungstates and tetrathiomolybdates: facile synthesis of disulfides from alkyl halides Journal of Organic Chemistry, 54 (13). pp. 2998-3000. ISSN 0022-3263

Baskaran, Sundarababu ; Gupta, Varsha ; Chidambaram, Nallaperumal ; Chandrasekaran, Srinivasan (1989) A facile conversion of alkenes to alcohols with benzyltriethylammonium borohydride–chlorotrimethylsilane Journal of the Chemical Society, Chemical Communications (14). pp. 903-904. ISSN 0022-4936

Baskaran, Sundarababu ; Gupta, Varsha ; Chidambaram, Nallaperumal ; Chandrasekaran, Srinivasan (1989) A facile conversion of alkenes to alcohols with benzyltriethylammonium borohydride–chlorotrimethylsilane Journal of the Chemical Society, Chemical Communications (14). pp. 903-904. ISSN 0022-4936

Chidambaram, Nallaperumal ; Chandrasekaran, Srinivasan (1987) Tert-Butyl hydroperoxide-pyridinium dichromate: a convenient reagent system for allylic and benzylic oxidations Journal of Organic Chemistry, 52 (22). pp. 5048-5051. ISSN 0022-3263

Vankar, Padma ; Rathore, Rajendra ; Chandrasekaran, Srinivasan (1986) A mild and highly selective method for the regeneration of carbonyl compounds from oximes and (2,4-dinitrophenyl)hydrazones Journal of Organic Chemistry, 51 (15). pp. 3063-3065. ISSN 0022-3263

Bhushan, Vidya ; Chakraborty, Tushar K. ; Chandrasekaran, Srinivasan (1984) Formation of cyclic carbonates in the reaction of 1,2-ditertiary diols with acetic anhydride and 4-(dimethylamino)pyridine Journal of Organic Chemistry, 49 (21). pp. 3974-3978. ISSN 0022-3263

Corey, E. J. ; Danheiser, Rick L. ; Chandrasekaran, Srinivasan ; Keck, Gary E. ; Gopalan, B. ; Larsen, Samuel D. ; Siret, Patrice ; Gras, Jean Louis (1978) Stereospecific total synthesis of gibberellic acid Journal of the American Chemical Society, 100 (25). pp. 8034-8036. ISSN 0002-7863

Chandrasekaran, Srinivasan ; Kluge, Arthur F. ; Edwards, John A. (1977) Studies in β-lactams. 6. Synthesis of substituted β-lactams by addition of nitromethane to 6-oxopenicillanates and 7-oxocephalosporanates Journal of Organic Chemistry, 42 (24). pp. 3972-3974. ISSN 0022-3263

Corey, E. J. ; Danheiser, Rick L. ; Chandrasekaran, Srinivasan (1976) New reagents for the intermolecular and intramolecular pinacolic coupling of ketones and aldehydes Journal of Organic Chemistry, 41 (2). pp. 260-265. ISSN 0022-3263