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Number of items: 115. Kotha, Sambasivarao ; Khedkar, Priti (2012) Rongalite: a useful green reagent in organic synthesis Chemical Reviews, 112 (3). pp. 1650-1680. ISSN 0009-2665 Kotha, Sambasivarao ; Chavan, Arjun S. ; Shaikh, Mobin (2012) Diversity-oriented approach to macrocyclic cyclophane derivatives by Suzuki–Miyaura cross-coupling and olefin metathesis as key steps Journal of Organic Chemistry, 77 (1). pp. 482-489. ISSN 0022-3263 Kotha, Sambasivarao ; Krishna, Nimita Gopal (2011) Synthetic approach to linearly annulated tetralin-based constrained α-amino acid derivatives via Rongalite Current Science, 101 (7). pp. 923-926. ISSN 0011-3891 Kotha, Sambasivarao ; Dipak, Mirtunjay Kumar ; Mobin, Shaikh M. (2011) Serendipitous and acid catalyzed synthesis of spirolactones Tetrahedron, 67 (25). pp. 4616-4619. ISSN 0040-4020 Kotha, Sambasivarao ; Bansal, Deepti ; Singh, Kuldeep ; Banerjee, Subhasree (2011) Synthesis of a new fluorescent macrocyclic α-amino acid derivative via tandem cross-enyne/ring-closing metathesis cascade catalyzed by ruthenium based catalysts Journal of Organometallic Chemistry, 696 (9). pp. 1856-1860. ISSN 0022-328X Kotha, Sambasivarao ; Chavan, Arjun S. ; Dipak, Mirtunjay Kumar (2011) Synthetic approach to cis and trans-decalins via Diels-Alder reaction and ring-closing metathesis as key steps: further extension to dioxapropellane derivative by ring-closing metathesis Tetrahedron, 67 (2). pp. 501-504. ISSN 0040-4020 Kotha, Sambasivarao ; Seema, Vittal ; Mobin, Shaikh M. (2011) Synthesis of biaryl derivatives by using ruthenium-mediated [2+2+2] cyclotrimerization and Suzuki-Miyaura cross-coupling as key steps Synthesis, 2011 (10). pp. 1581-1586. ISSN 0039-7881 Kotha, Sambasivarao ; Misra, Shilpi ; Mobin, Shaikh M. (2011) A new approach to 3-substituted tetrahydro-β-carboline derivative via diethyl acetamidomalonate Amino Acids, 41 (4). pp. 933-936. ISSN 0939-4451 Kotha, Sambasivarao ; Krishna, Nimita G. ; Halder, Somnath ; Misra, Shilpi (2011) A synergistic approach to polycyclics via a strategic utilization of Claisen rearrangement and olefin metathesis Organic and Biomolecular Chemistry, 9 (16). pp. 5597-5624. ISSN 1477-0520 Kotha, Sambasivarao ; Chavan, Arjun S. (2010) Design and synthesis of benzosultine-sulfone as a o-xylylene precursor via cross-enyne metathesis and rongalite: further expansion to polycyclics via regioselective Diels-Alder reaction Journal of Organic Chemistry, 75 (12). pp. 4319-4322. ISSN 0022-3263 Kotha, Sambasivarao ; Seema, Vittal ; Singh, Kuldeep ; Deodhar, Kodand Dinkar (2010) Strategic utilization of catalytic metathesis and photo-thermal metathesis in caged polycyclic frames Tetrahedron Letters, 51 (17). pp. 2301-2304. ISSN 0040-4039 Kotha, Sambasivarao ; Kashinath, Dhurke ; Lopus, Manu ; Panda, Dual (2009) Synthesis of nano-sized C3-symmetric 2,4,6-triphenyl-1,3,5-s-triazine and 1,3,5-triphenylbenzene derivatives via the trimerization followed by Suzuki-Miyaura cross-coupling or O-alkylation reactions and their biological evaluation Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 48 . pp. 1766-1770. ISSN 0376-4699 Kotha, Sambasivarao ; Khedkar, Priti (2009) Differential reactivity pattern of hybrid o-quinodimethane precursors: strategic expansion to annulated benzocycloalkanes via rongalite Journal of Organic Chemistry, 74 (15). pp. 5667-5670. ISSN 0022-3263 Kotha, Sambasivarao ; Mandal, Kalyaneswar (2009) A retrospective on the design and synthesis of novel molecules through a strategic consideration of metathesis and Suzuki-Miyaura cross-coupling Chemistry - A European Journal, 4 (3). pp. 354-362. ISSN 0947-6539 Kotha, Sambasivarao ; Bansal, Deepti ; Kumar, Ramanatham Vinod (2009) Synthesis of symmetrical and unsymmetrical trisubstituted benzene derivatives through ring-closing alkyne metathesis strategy and depropargylation with various catalysts Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 48 . pp. 225-230. ISSN 0376-4699 Kotha, Sambasivarao ; Khedkar, Priti (2009) A diversity-oriented approach to diphenylalkanes by strategic utilization of [2+2+2] cyclotrimerization, cross-enyne metathesis and Diels-Alder reaction European Journal of Organic Chemistry, 2009 (5). pp. 730-738. ISSN 1434-193X Kotha, Sambasivarao ; Meshram, Milind ; Tiwari, Arti (2009) Advanced approach to polycyclics by a synergistic combination of enyne metathesis and Diels-Alder reaction Chemical Society Reviews, 38 (7). pp. 2065-2092. ISSN 0306-0012 Kotha, Sambasivarao ; Misra, Shilpi ; Halder, Somnath (2008) Benzannulation Tetrahedron, 64 (48). pp. 10775-10790. ISSN 0040-4020 Kotha, Sambasivarao ; Kashinath, Dhurke ; Kumar, Sandeep (2008) Synthesis of liquid crystalline materials based on 1,3,5-triphenylbenzene and 2,4,6-triphenyl-1,3,5-s-triazine Tetrahedron Letters, 49 (37). pp. 5419-5423. ISSN 0040-4039 Kotha, Sambasivarao ; Deb, Ashoke Chandra (2008) Design and synthesis of spiro-heterocycles by ring-closing metathesis Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 47 (7). pp. 1120-1134. ISSN 0376-4699 Kotha, Sambasivarao ; Shah, Vrajesh R. (2008) Design and synthesis of 1-benzazepine derivatives by strategic utilization of Suzuki-Miyaura cross-coupling, aza-Claisen rearrangement and ring-closing metathesis European Journal of Organic Chemistry, 2008 (6). pp. 1054-1064. ISSN 1434-193X Kumaradhas, P. ; Gupta, Kundan R. ; Kotha, Sambasivarao ; Brahmachari, Enugurthi ; Nirmala, K. A. (2008) Crystal structure of 2,6-diisocyano-1,2,3,5,6,7-hexahydro-s-indacene-2,6-dicarboxylic acid diethylester Analytical Sciences, 24 . x65-x66. ISSN 0910-6340 Kotha, S. ; Shah, V. R. ; Mishra, P. P. ; Datta, A. (2008) Design and synthesis of a novel anthracene-based fluorescent probe through the application of the Suzuki-Miyaura cross-coupling reaction Amino Acids, 35 (1). pp. 169-173. ISSN 0939-4451 Kotha, S. ; Shah, V. R. (2008) Synthesis of C3-symmetric and C4-symmetric amino acid derivatives via Suzuki-Miyaura cross-coupling reaction Amino Acids, 35 (1). pp. 83-88. ISSN 0939-4451 Kotha, Sambasivarao ; Khedkar, Priti (2008) Synthesis of a conformationally constrained phenylalanine derivative by a strategic combination of ring-closing enyne metathesis and Diels-Alder reaction Synthesis, 2008 (18). pp. 2925-2928. ISSN 0039-7881 Kotha, Sambasivarao ; Singh, Kuldeep (2007) Cross-enyne and ring-closing metathesis cascade: a building-block approach suitable for diversity-oriented synthesis of densely functionalized macroheterocycles with amino acid scaffolds European Journal of Organic Chemistry, 2007 (35). pp. 5909-5916. ISSN 1434-193X Kotha, Sambasivarao ; Mandala, Kalyaneswar (2007) Metathesis of a novel dienediyne system: a unique example involving the usage of in situ generated ethylene as cross-enyne metathesis partner Journal of Organometallic Chemistry, 692 (22). pp. 4921-4927. ISSN 0022-328X Kotha, Sambasivarao ; Khedkar, Priti (2007) Synthesis of conformationally constrained α-imino acid derivatives via ring-closing metathesis Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 46 . pp. 975-979. ISSN 0376-4699 Kotha, Sambasivarao ; Shah, Vrajesh R. ; Mandal, Kalyaneswar (2007) Formation of arenes via diallylarenes: strategic utilization of Suzuki-Miyaura cross-coupling, claisen rearrangement and ring-closing metathesis Advanced Synthesis & Catalysis, 349 (7). pp. 1159-1172. ISSN 1615-4150 Kotha, Sambasivarao ; Lahiri, Kakali (2007) Expanding the diversity of polycyclic aromatics through a Suzuki-Miyaura cross-coupling strategy European Journal of Organic Chemistry, 2007 (8). pp. 1221-1236. ISSN 1434-193X Kotha, Sambasivarao ; Mandal, Kalyaneswar ; Banerjee, Shaibal ; Mobin, Shaikh M. (2007) Synthesis of novel quinone-amino acid hybrids via cross-enyne metathesis and Diels-Alder reaction as key steps European Journal of Organic Chemistry, 2007 (8). pp. 1244-1255. ISSN 1434-193X Kotha, Sambasivarao ; Shah, Vrajesh R. (2007) Synthesis of bis- and trisoxazole derivatives via Suzuki-Miyaura cross-coupling reaction and van Leusen oxazole synthesis Synthesis, 2007 (23). pp. 3653-3658. ISSN 0039-7881 Kotha, S. ; Shah, V. R. ; Halder, S. ; Vinodkumar, R. ; Lahiri, K. (2007) Synthesis of bis-armed amino acid derivatives via the alkylation of ethyl isocyanoacetate and the Suzuki-Miyaura cross-coupling reaction Amino Acids, 32 (3). pp. 387-394. ISSN 0939-4451 Kotha, Sambasivarao ; Kashinath, Dhurke ; Khedkar, Priti (2007) Synthesis of crown-based sulfones via rongalite: diversity-oriented approach to annulated benzocrowns by Diels-Alder reactions Synthesis, 2007 (21). pp. 3357-3360. ISSN 0039-7881 Kotha, Sambasivarao ; Banerjee, Shaibal (2007) Synthesis of novel 1,2,3,4 -tetrahydroisoquinoline -3 -carboxylic acid derivatives through the application of rongalite: a synergistic combination of [2+2+2]-and [4+2]-cycloaddition reactions Synthesis, 2007 (7). pp. 1015-1020. ISSN 0039-7881 Kotha, Sambasivarao ; Behera, Manoranjan (2006) Preparation of functionalised tetraphenylmethane derivatives via the Suzuki-Miyaura cross-coupling reaction Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 45 (B12). pp. 2684-2689. ISSN 0376-4699 Kotha, Sambasivarao ; Mandal, Kalyaneswar (2006) Suzuki-Miyaura cross-coupling and ring-closing metathesis: a strategic combination for the synthesis of cyclophane derivatives European Journal of Organic Chemistry, 2006 (23). pp. 5387-5393. ISSN 1434-193X Kotha, Sambasivarao ; Mandal, Kalyaneswar ; Tiwari, Arti ; Mobin, Shaikh M. (2006) Diversity-oriented approach to biologically relevant molecular frameworks starting with β-naphthol and using the Claisen rearrangement and olefin metathesis as key steps Chemistry - A European Journal, 12 (31). pp. 8024-8038. ISSN 0947-6539 Kotha, Sambasivarao ; Dipak, Mirtunjay Kumar (2006) Design and synthesis of novel propellanes by using claisen rearrangement and ring-closing metathesis as the key steps Chemistry - A European Journal, 12 (6). pp. 4446-4450. ISSN 0947-6539 Kotha, Sambasivarao ; Ashoke, Deb C. ; Subrata, Chattopadhyay (2006) Design and synthesis of Spirocyclics via the Diels alder reaction and ring-opening cross-metathesis as key steps Letters in Organic Chemistry, 3 (2). pp. 128-134. ISSN 1570-1786 Kotha, Sambasivarao ; Ghosh, Arun Kumar (2006) A new and simple synthetic approach to functionalized sulphone derivatives by the Suzuki-Miyaura cross-coupling reaction Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 45 . pp. 227-231. ISSN 0376-4699 Kotha, Sambasivarao ; Banerjee, Shaibal ; Patil, Mahendra P. ; Sunoj, Raghavan B. (2006) Retro Diels-Alder reaction under mild conditions: experimental and theoretical studies Organic and Biomolecular Chemistry, 4 (10). pp. 1854-1856. ISSN 1477-0520 Kotha, Sambasivarao ; Brahmachary, Enugurthi ; Lahiri, Kakali (2005) Transition metal catalyzed [2+2+2] cycloaddition and application in organic synthesis European Journal of Organic Chemistry, 2005 (22). pp. 4741-4767. ISSN 1434-193X Kotha, Sambasivarao ; Khedkar, Priti ; Ghosh, Arun Kumar (2005) Synthesis of symmetrical sulfones from rongalite: expansion to cyclic sulfones by ring-closing metathesis European Journal of Organic Chemistry, 2005 (16). pp. 3581-3585. ISSN 1434-193X Kotha, Sambasivarao ; Mandal, Kalyaneswar ; Arora, Kapildev K. ; Pedireddi, V. R. (2005) New synthetic approach to a [1.1. 6] metapara cyclophane derivative via Suzuki-Miyaura cross-coupling and ring-closing metathesis Advanced Synthesis & Catalysis, 374 (9). pp. 1215-1218. ISSN 1615-4150 Kotha, Sambasivarao ; Kakali, Lahiri (2005) Post-assembly peptide modifications by chemical methods Current Medicinal Chemistry, 12 (7). pp. 849-875. ISSN 0929-8673 Kotha, Sambasivarao ; Deb, Ashoke Chandra ; Kumar, Ramanatham Vinod (2005) Spiro-annulation of barbituric acid derivatives and its analogs by ring-closing metathesis reaction Bioorganic & Medicinal Chemistry Letters, 15 (4). pp. 1039-1043. ISSN 0960-894X Kotha, Sambasivarao ; Kashinath, Dhurke (2005) Synthesis of functionalized benzo-18-crown-6 compounds via the Suzuki-Miyaura cross-coupling reaction Synthesis, 2005 (6). pp. 971-976. ISSN 0039-7881 Kotha, Sambasivarao ; Sivakumar, Rallapalli (2005) An iterative approach to higher polyquinanes ARKIVOC: Online Journal of Organic Chemistry . pp. 78-88. ISSN 1424-6376 Kotha, Sambasivarao ; Behera, Manoranjan ; Shah, Vrajesh R. (2005) A simple synthetic approach to allylated aromatics via the Suzuki-Miyaura cross-coupling reaction Synlett, 2005 (12). pp. 1877-1880. ISSN 0936-5214 Kotha, Sambasivarao ; Mandal, Kalyaneswar ; Deb, Ashoke Chandra ; Banerjee, Shaibal (2004) Microwave-assisted Claisen rearrangement on a silica gel support Tetrahedron Letters, 45 (52). pp. 9603-9605. ISSN 0040-4039 Kotha, Sambasivarao ; Singh, Kuldeep (2004) N-Alkylation of diethyl acetamidomalonate: synthesis of constrained amino acid derivatives by ring-closing metathesis Tetrahedron Letters, 45 (52). pp. 9607-9610. ISSN 0040-4039 Kotha, Sambasivarao ; Ghosh, Arun Kumar (2004) Cycloaddition approach to benzo-annulated indane-based α-amino acid derivatives Tetrahedron, 60 (48). pp. 10833-10841. ISSN 0040-4020 Damodharan, Lakshminarasimhan ; Pattabhi, Vasantha ; Behera, Manoranjan ; Kotha, Sambasivarao (2004) Optimization of interactions in crystal packing revealed by crystal structures [ethyl 2-(formylamino)-3-thien-2-yl-2-(thien-2-ylmethyl)propanoate and ethyl 3-(5-bromothien-2-yl)-2-[(5-bromothien-2-yl)methyl]-2-(formylamino)propanoate] Journal of Molecular Structure, 705 (1-3). pp. 101-106. ISSN 0022-2860 Kotha, Sambasivarao ; Behera, Manoranjan ; Khedkar, Priti (2004) Environmentally Benign process for the synthesis of N-formyl amino acid esters Tetrahedron Letters, 45 (41). pp. 7589-7590. ISSN 0040-4039 Kotha, Sambasivarao ; Kashinath, Dhurke ; Lahiri, Kakali ; Sunoj, Raghavan B. (2004) Synthesis of C3-symmetric nano-sized polyaromatic compounds by trimerization and Suzuki-Miyaura cross-coupling reactions European Journal of Organic Chemistry, 2004 (19). pp. 4003-4013. ISSN 1434-193X Damodharan, Lakshminarasimhan ; Pattabhi, Vasantha ; Behera, Manoranjan ; Kotha, Sambasivarao (2004) Conformational switching caused by biphenyl substitution at the Cα position: ethyl 2-benzyl-2-(formylamino)-3-phenylpropionate and ethyl 3-(1,1'-biphenyl-4-yl)-2-(formylamino)-2-(4-phenylbenzyl)propionate Acta Crystallographica Section C, 60 (7). o527-o530. ISSN 0108-2701 Kotha, Sambasivarao ; Ghosh, Arun Kumar (2004) A Diels-Alder approach for the synthesis of highly functionalized benzo-annulated indane-based α-amino acid derivatives via a sultine intermediate Tetrahedron Letters, 45 (14). pp. 2931-2934. ISSN 0040-4039 Kotha, Sambasivarao ; Mandal, Kalyaneswar (2004) A new protocol for benzoannulation by double Claisen rearrangement and ring-closing metathesis reactions as key steps Tetrahedron Letters, 45 (12). pp. 2585-2588. ISSN 0040-4039 Kotha, Sambasivarao ; Mandala, Kalyaneswar (2004) Metathetic approach to naphthoxepin and spirocyclic molecular frameworks Tetrahedron Letters, 45 (7). pp. 1391-1394. ISSN 0040-4039 Kotha, Sambasivarao ; Brahmachary, Enugurthi (2004) Synthesis and reactions of silicon containing cyclic α-amino acid derivatives Journal of Organometallic Chemistry, 689 (1). pp. 158-163. ISSN 0022-328X Kotha, Sambasivarao ; Ghosh, Arun Kumar (2004) The Diels-Alder approach for the synthesis of tetralin-based α-amino acid derivatives and their modification by the Suzuki-Miyaura cross-coupling reaction Synthesis, 2004 (4). pp. 558-567. ISSN 0039-7881 Kotha, Sambasivarao ; Banerjee, Shaibal ; Mandal, Kalyaneswar (2004) Oxidative dehydrogenation and the aromatization of polycycles using o-iodoxybenzoic acid (IBX) Synlett, 2004 (11). pp. 2043-2045. ISSN 0936-5214 Thallapally, Praveen K. ; Jetti, Ram K. R. ; Katz, Amy K. ; Carrell, H. L. ; Singh, Kuldeep ; Lahiri, Kakali ; Kotha, Sambasivarao ; Boese, Roland ; Desiraju, Gautam R. (2004) Polymorphism of 1,3,5-Trinitrobenzene induced by a Trisindane additive Angewandte Chemie International Edition, 43 (9). pp. 1149-1155. ISSN 1433-7851 Kotha, Sambasivarao ; Ghosh, Arun Kumar ; Deodhar, Kodand Dinkar (2004) Synthesis of symmetrical and unsymmetrical 9, 10-diarylanthracene derivatives via bis-Suzuki-Miyaura cross-coupling reaction Synthesis, 2004 (4). pp. 549-557. ISSN 0039-7881 Kotha, Sambasivarao ; Lahiri, Kakali (2003) Application of the Suzuki-Miyaura cross-coupling reaction for the modification of phenylalanine peptides Biopolymers, 69 (4). pp. 517-528. ISSN 0006-3525 Damodharan, Lakshminarasimhan ; Pattabhi, Vasantha ; Sivakumar, Rallapalli ; Kotha, Sambasivarao (2003) Precursors to dodecahedrane Acta Crystallographica Section C, 59 (7). o373-o375. ISSN 0108-2701 Kotha, Sambasivarao (2003) The building block approach to unusual α-amino acid derivatives and peptides Accounts of Chemical Research, 36 (5). pp. 342-351. ISSN 0001-4842 Damodharan, Lakshminarasimhan ; Pattabhi, Vasantha ; Behera, Manoranjan ; Kotha, Sambasivarao (2003) Ethyl 2-formamido-2-(4-iodobenzyl)-3-(4-iodophenyl)propionate and ethyl 2-(3-bromobenzyl)-3-(3-bromophenyl)-2-formamidopropionate Acta Crystallographica Section C, 59 (4). o216-o218. ISSN 0108-2701 Kotha, Sambasivarao ; Lahiri, Kakali ; Kashinath, Dhurke (2002) Recent applications of the Suzuki-Miyaura cross-coupling reaction in organic synthesis Tetrahedron, 58 (48). pp. 9633-9695. ISSN 0040-4020 Kotha, Sambasivarao ; Halder, Somnath ; Brahmachary, Enugurthi (2002) Synthesis of highly functionalized phenylalanine derivatives via cross-enyne metathesis reactions Tetrahedron, 58 (45). pp. 9203-9208. ISSN 0040-4020 Kotha, Sambasivarao ; Brahmachary, Enugurthi (2002) Synthesis of constrained phenylalanine derivatives via a [2+2+2] cycloaddition strategy Bioorganic & Medicinal Chemistry, 10 (7). pp. 2291-2295. ISSN 0968-0896 Kotha, Sambasivarao ; Sivakumar, Rallapalli ; Damodharan, Lakshminarasimhan ; Pattabhi, Vasantha (2002) Synthesis of two new hexaquinanes: advanced C20 precursors to dodecahedrane Tetrahedron Letters, 43 (25). pp. 4523-4525. ISSN 0040-4039 Damodharan, Lakshminarasimhan ; Shamaladevi, Nagarajarao ; Pattabhi, Vasantha ; Behera, Manoranjan ; Kotha, Sambasivarao (2002) Ethyl 6-acetylamino-6,7-dihydro-5H-dibenzo[a,c]cycloheptene-6-carboxylate Acta Crystallographica Section C, 58 (5). o266-o267. ISSN 0108-2701 Kotha, Sambasivarao ; Halder, Somnath ; Damodharan, Lakshminarasimhan ; Pattabhi, Vasantha (2002) First and unexpected synthesis of macrocyclic cyclophane-based unusual α-amino acid derivatives by phosphazene base without high dilution conditions Bioorganic & Medicinal Chemistry Letters, 12 (7). pp. 1113-1115. ISSN 0960-894X Kotha, Sambasivarao ; Stoodley, Richard J. (2002) Enantioselective synthesis of (+)-4-demethoxy-1, 4-dimethyldaunomycinone Bioorganic & Medicinal Chemistry, 10 (3). pp. 621-624. ISSN 0968-0896 Kotha, Sambasivarao ; Behera, Manoranjan ; Kumar, Ramanatham Vinod (2002) Synthesis of highly functionalised dibenzylglycine derivatives via the Suzuki-Miyaura coupling reaction Bioorganic & Medicinal Chemistry Letters, 12 (1). pp. 105-108. ISSN 0960-894X Kotha, Sambasivarao ; Halder, Somnath ; Lahiri (Née Chakraborty), Kakali (2002) Modification of indane-based unusual α-amino acid derivatives via the Suzuki-Miyaura coupling reaction Synthesis, 2002 (3). 0339-0342. ISSN 0039-7881 Kotha, Sambasivarao ; Ghosh, Arun Kumar (2002) Synthesis of 9, 10-diarylanthracene derivatives via bis Suzuki-Miyaura cross-coupling reaction Synlett, 2002 (3). 0451-0452. ISSN 0936-5214 Kotha, Sambasivarao ; Lahiri, Kakali (2001) A new approach for modification of phenylalanine peptides by Suzuki-Miyaura coupling reaction Bioorganic & Medicinal Chemistry Letters, 11 (21). pp. 2887-2890. ISSN 0960-894X Kotha, Sambasivarao ; Sreenivasachary, Nampally (2001) Synthesis of 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives by cycloaddition approaches European Journal of Organic Chemistry, 2001 (17). pp. 3375-3383. ISSN 1434-193X Kotha, Sambasivarao ; Sreenivasachary, Nampally ; Brahmachary, Enugurthi (2001) Synthesis of benzocycloheptene-based amino acid derivatives via a [4+2] cycloaddition reaction as a key step Tetrahedron, 57 (29). pp. 6261-6265. ISSN 0040-4020 Kotha, Sambasivarao ; Sreenivasachary, Nampally ; Mohanraja, Kumar ; Durani, Susheel (2001) Modification of constrained peptides by ring-closing metathesis reaction Bioorganic & Medicinal Chemistry Letters, 11 (11). pp. 1421-1423. ISSN 0960-894X Kotha, Sambasivarao ; Sreenivasachary, Nampally ; Brahmachary, Enugurthi (2001) Constrained phenylalanine derivatives by enyne metathesis and Diels-Alder reaction European Journal of Organic Chemistry, 2001 (4). pp. 787-792. ISSN 1434-193X Mehta, Goverdhan ; Kotha, Sambasivarao (2001) Recent chemistry of benzocyclobutenes Tetrahedron, 57 (4). pp. 625-659. ISSN 0040-4020 Thallapally, Praveen K. ; Chakraborty, Kakali ; Katz, Amy K. ; Carrell, H. L. ; Kotha, Sambasivarao ; Desiraju, Gautam R. (2001) Matching of molecular and supramolecular symmetry. An exercise in crystal engineering CrystEngComm, 3 (31). pp. 134-136. ISSN 1466-8033 Kotha, Sambasivarao ; Manivannan, Ethirajan (2001) Synthesis of spiro-indanes by cycloaddition strategy Journal of the Chemical Society, Perkin Transactions 1 (20). pp. 2543-2547. ISSN 0300-922X Kotha, Sambasivarao ; Lahiri (Née Chakraborty), Kakali ; Sreenivasachary, Nampally (2001) Synthesis of useful benzocyclobutene building blocks via the Suzuki-Miyaura coupling reaction Synthesis, 2001 (13). pp. 1932-1934. ISSN 0039-7881 Thallapally, K. Praveen ; Chakraborty, Kakali ; Carrell, H. L. ; Kotha, Sambasivarao ; Desiraju, Gautam R. (2000) Shape and size effects in the crystal structures of complexes of 1,3,5-trinitrobenzene with some trigonal donors: the benzene-thiophene exchange rule Tetrahedron, 56 (36). pp. 6721-6728. ISSN 0040-4020 Kotha, Sambasivarao ; Ganesh, Thota ; Ghosh, Arun Kumar (2000) Diels-Alder approach to tetralin-based constrained α-amino acid derivatives Bioorganic & Medicinal Chemistry Letters, 10 (15). pp. 1755-1757. ISSN 0960-894X Kotha, Sambasivarao ; Sreenivasachary, Nampally (2000) A new synthetic approach to 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives via a [2+2+2] cycloaddition reaction Bioorganic & Medicinal Chemistry Letters, 10 (13). pp. 1413-1415. ISSN 0960-894X Kotha, Sambasivarao ; Brahmachary, Enugurthi (2000) Synthesis of Indan-based unusual α-amino acid derivatives under phase-transfer catalysis conditions Journal of Organic Chemistry, 65 (5). pp. 1359-1365. ISSN 0022-3263 Kotha, Sambasivarao ; Mohanraja, Kumar ; Durani, Susheel (2000) Constrained phenylalanyl peptides via a [2+2+2]-cycloaddition strategy Chemical Communications (19). pp. 1909-1910. ISSN 1359-7345 Foulger, Stephen H. ; Kotha, Sanjay ; Sweryda-Krawiec, Beata ; Baughman, Travis W. ; Ballato, John M. ; Jiang, Ping ; Smith, Dennis W. (2000) Robust polymer colloidal crystal photonic bandgap structures Optics Letters, 25 (17). pp. 1300-1302. ISSN 0146-9592 Kotha, Sambasivarao ; Halder, Somnath ; Brahmachary, Enugurthi ; Ganesh, Thota (2000) Synthesis of unusual α-amino acid derivatives via cross-enyne metathesis reaction Synlett, 2000 (6). 0853-0855. ISSN 0936-5214 Kotha, Sambasivarao ; Sreenivasachary, Nampally (2000) A new synthetic approach to 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives via enyne metathesis and the Diels-Alder reaction Chemical Communications, 2000 (6). pp. 503-504. ISSN 1359-7345 Kotha, Sambasivarao ; Sreenivasachary, Nampally ; Halder, Somnath (1999) First synthesis of optically active benzocyclobutene and biphenylene-based unusual α-amino acid derivatives Bioorganic & Medicinal Chemistry Letters, 9 (17). pp. 2565-2568. ISSN 0960-894X Kotha, Sambasivarao ; Manivannan, Ethirajan ; Sreenivasachary, Nampally (1999) Allylation of caged diketones via fragmentation methodology Journal of the Chemical Society, Perkin Transactions 1 (19). pp. 2845-2848. ISSN 0300-922X Kotha, Sambasivarao ; Manivannan, Ethirajan ; Ganesh, Thota ; Sreenivasachary, Nampally ; Deb, Ashoke (1999) Spiro-annulation via ring closing metathesis reaction Synlett, 1999 (10). pp. 1618-1620. ISSN 0936-5214 Kotha, Sambasivarao ; Chakraborty, Kakali ; Brahmachary, Enugurthi (1999) A general and simple method for the synthesis of star-shaped thiophene derivatives Synlett, 1999 (10). pp. 1621-1623. ISSN 0936-5214 Kotha, Sambasivarao ; Brahmachary, Enugurthi ; Sreenivasachary, Nampally (1998) Synthesis of constrained α-amino acid derivatives via Diels-Alder approach Tetrahedron Letters, 39 (23). pp. 4095-4098. ISSN 0040-4039 Kotha, Sambasivarao ; Sreenivasachary, Nampally ; Brahmachary, Enugurthi (1998) Synthesis of constrained α-amino acid derivatives via enyne metathesis reaction Tetrahedron Letters, 39 (18). pp. 2805-2808. ISSN 0040-4039 Kotha, Sambasivarao ; Sreenivasachary, Nampally (1998) Synthesis of constrained α-amino acid derivatives via ring-closing olefin metathesis Bioorganic & Medicinal Chemistry Letters, 8 (3). pp. 257-260. ISSN 0960-894X Kotha, Sambasivarao ; Brahmachary, Enugurthi ; Kuki, Atsuo ; Lang, Kamil ; Anglos, Demetrios ; Singaram, Bakthan ; Chrisman, William (1997) Synthesis of a novel constrained α-amino acid with quinoxaline side chain: 7-amino-6,7-dihydro-8H-cyclopenta[g]quinoxaline-7-carboxylic acid Tetrahedron Letters, 38 (52). pp. 9031-9034. ISSN 0040-4039 Kotha, Sambasivarao ; Brahmachary, Enugurthi (1997) Synthesis of conformationally constrained α-amino acid derivatives using ethyl isocyanoacetate as glycine equivalent Bioorganic & Medicinal Chemistry Letters, 7 (21). pp. 2719-2722. ISSN 0960-894X Kotha, Sambasivarao ; Brahmachary, Enugurthi ; Sivakumar, Rallapalli ; Joseph, Arul ; Sreenivasachary, Nampally (1997) A simple route to cyclopentane annulation Tetrahedron Letters, 38 (25). pp. 4497-4500. ISSN 0040-4039 Kotha, Sambasivarao ; Brahmachary, Enugurthi (1997) Synthesis of unusual α-amino acids via a 2+2+2 cycloaddition strategy Tetrahedron Letters, 38 (20). pp. 3561-3564. ISSN 0040-4039 Kotha, Sambasivarao (1994) Opportunities in asymmetric synthesis: an industrial prospect Tetrahedron, 50 (12). pp. 3639-3662. ISSN 0040-4020 Kotha, Sambasivarao ; Kuki, Atsuo (1993) Synthesis of a new rigid quinone-amino acid and Diels-Alder extension to higher quinones Chemistry Letters, 22 (2). pp. 299-302. ISSN 0366-7022 Kotha, Sambasivarao ; Anglos, Demetrios ; Kuki, Atsuo (1992) Friedel-crafts approach to electron deficient cyclic α-amino acids Tetrahedron Letters, 33 (12). pp. 1569-1572. ISSN 0040-4039 Kotha, Sambasivarao ; Kuki, Atsuo (1992) A simple method for the synthesis of cyclic α-amino acids Tetrahedron Letters, 33 (12). pp. 1565-1568. ISSN 0040-4039 Kotha, Sambasivarao ; Kuki, Atsuo (1992) A new synthetic approach to unusually electron rich α-amino acids Journal of the Chemical Society, Chemical Communications (5). pp. 404-406. ISSN 0022-4936 Gupta, Ashok K. ; Sambasivarao, Kotha ; Opansky, Brian ; Cook, James M. (1990) A general approach to the synthesis of polyquinenes via the Weiss reaction. 10. Transient formation of cis-tetracyclo[7.2.1.04,11.06,10]dodeca-3,5,7,9-tetraene and an approach toward 10,11-dimethyl-cis-tetracyclo[7.2.1.04,11.06,10]dodeca-3,5,7,9-tetraene Journal of Organic Chemistry, 55 (14). pp. 4480-4483. ISSN 0022-3263 Sambasivarao, Kotha ; Kubiak, G. ; Lannoye, G. ; Cook, James M. (1988) General approach to the synthesis of polyquinenes. 9. The monofunctionalization and alteration of the symmetry of the cis-bicyclo[3.3.0]octane-3,7-dione unit Journal of Organic Chemistry, 53 (21). pp. 5173-4175. ISSN 0022-3263 Lannoye, G. ; Sambasivarao, Kotha ; Wehrli, S. ; Cook, J. M. ; Weiss, U. (1988) General approach to the synthesis of polyquinenes via the Weiss reaction. 6. Progress toward the synthesis of dicyclopentapentalenes Journal of Organic Chemistry, 53 (10). pp. 2327-2340. ISSN 0022-3263 |