Prof. Kotha's Group
Department of Chemistry, Indian Institute of Technology, Bombay, India


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Recent Publications [updated on December 2013]

Our article entitled "Recent applications of Suzuki-Miyaura coupling reaction in organic synthesis" published in   Tetrahedron 58, 9633, 2002 has been ranked as the third most requested article during  2003 and  5th position during 2004. Details are available at http://www.cas.org/spotlight/  Special Citations

 

      Researcher ID  ORCID 

 

2014

 

[171]    S. Kotha, G. Waugale, M. Shirabhate

            Diversity oriented approach normuscone and its higher analogues by ring-closing metathesis.

            Eur. J. Org. Chem. (accepted)

[170]    S. Kotha, V. B. Bandarugutta, N. G. Krishna,

            Diversity oriented approach to unusual amino acid derivatives and heterocycles via methyl-2-acetamidoacrylate and its congeners

            Tetrahedron (accepted)

[169]    S. Kotha, A. K. Chinnam

            Anomalous behaviour of cis-bicyclo[3.3.0]octane-3,7-dione and its derivatives during two fold

            Fischer indole cyclization using low melting mixtures.

            Synthesis (accepted)

[168]    S. Kotha, R. Ali

            Diversity oriented approach to spirobarbituric acid derivatives via a [2+2+2] cycloaddition and Diels-Alder reaction as key steps.

            Heterocycles 88, 789, 2014.

 

 

2013

 

[167]    S. Kotha, D. Goyal, A. S. Chavan

Diversity oriented approache to unusual amino acids and peptides: Step economy, atom economy, redox economy and beyond.

J. Org. Chem.  78, 12288, 2013.

[166]    S. Kotha, A. K. Chinnam, A. Tiwari

            Synthesis of  indole-based propellane derivatives via Weiss-Cook condensation, Fischer-indole cyclization and ring-closing metathesis as key             steps.

            Bellistein J. Org. Chem. 9, 2709, 2013.

[165]    S. Kotha, M. Mishram

            Functionalization of anthracene by strategic utilization of the Diels-Alder reaction and ring-closing metathesis

            J. Indian. Chem. Soc.90, 1789, 2013.

[164]    S. Kotha, D. Goyal, A. Bitra, N. Thota, G. Kruger, R. Anad

            Diversity oriented approach to triazole  based peptidiomimetics as mammalian sterile 20 kinase inhibitors.

            RSC Aav. 3, 24447, 2013.

[163]    S. Kotha, S. Mistra, G. Sreevani, V. B. Bandarugattu

            Non metathetic behavior metathesis catalysts

            Curr. Org. Chem. 17, 2774, 2013.

[162]    S. Kotha, R. Ali, A. Tiwai

            Diversity oriented approach to novel spirocyclics via enyne-metathsis, Diels-Alder reaction and a [2+2+2] cycloaddition as key steps

            Synlett 1921, 2013.

[161]    S. Kotha, S. Banerjee

            Recent developments in retro-Diels-Alder reaction

            RSC Adv. 3, 7642, 2013.

 

 

2012

 

[160]    S. Kotha, V. Srinivas, N. G. Krishna

Diversity oriented approach to 9-aryl substituted naphthoxepine derivatives via Claisen rearrangement, ring closing metathesis and Suzuki coupling as key steps.
Heterocycles 1555, 86, 2012.

[159]    S. Kotha, M. E. Shirbhate

Diversity oriented approach to macrocyclic cyclophane derivatives by ring-closing metathesis.
Synlett 2183, 2012.

[158]    S. Kotha, G. Waghule

Diversity oriented approach to crownphanes by enyne metathesis and Diels-Alder reaction as key steps.
J. Org. Chem. 6314, 77, 2012.

[157]    S. Kotha, S. Misra, V. Srinivas

Diversity oriented approach to halogenated constrained alpha amino acid derivatives and polycyclics via the Diels-Alder reaction and the Suzuki-Miyaura cross-coupling as key steps.
Eur. J.Org. Chem. 4052, 2012.

[156]    S. Kotha, D. Bansal, S. Banerjee, A. Datta

A Novel triazole based peptide as a highly sensitive and selective fluorescent chemosensor for Zn2+ ions.
Analyst 2871, 137, 2012.

[155]    S. Kotha, P. Khedkar

Rongalite: A useful green reagent in organic synthesis
Chem. Rev. 1650, 112, 2012.

[154]    S. Kotha, D. Goyal, N. Thota, V. Sreenivas

Synthesis of modified phenylalanine peptides by cross-enyne metathesis and Diels-Alder reaction as key steps
Eur. J. Org. Chem. 1843, 2012.

[153]    S. Kotha, A. S. Chavan, S. Mobin

A new and diversity oriented apparoach to cyclophane derivatives via Suzuki-Miyaura cross-coupling and ring-closing metathesis as key steps.
J. Org. Chem. 482, 77, 2012.

[152]    S. Kotha, M. K. Dipak

Strategies and tactics in olefin metathesis
Tetrahedron 397, 68, 2012.



2011


[151]    S. Kotha, V. Seema

Diversity oriented syntheis of biaryl derivatives using cross-enyne metathesis, Diels-alder reaction and Suzuki-Miyura cross-coupling as key steps.
Synlett 2329, 2011.

[150]    S. Kotha, N. G. Krishna

Synthetic approach to linearly annulated tetralin-based constrained alpha-amino acid derivatives via Rongalite.
Current Science 923, 101, 2011.

[149]    S. Kotha, N. G. Krishna, S. Misra, P. Khedkar

Synthesis of linearly and angularly fused constrained alpha amino acid derivatives.
Synthesis 2945, 2011.

[148]    S. Kotha, N. G. Krishna, S. Halder, S. Misra

Synergetstic approach to polycyclics via a strategic utilization of Claisen rearrangement and olefin metathesis
Org. Biomol. Chem. 5597, 9, 2011.

[147]    S. Kotha, S. Misra, S. M. Mobin

A new approach to 3-substituted tetrahydro-β-carboline derivative via diethyl acetamidomalonate
Amino Acids 933, 41, 2011.

[146]    S. Kotha, M. K. Dipak, S. M. Mobin

Serdipitous and acid catalyzed synthesis of spirolactones.
Tetrahedron 4616, 67, 2011.

[145]    S. Kotha, V. Seema, S. M. Mobin

Synthesis of biaryl derivatives by using ruthenium mediated [2+2+2] cyclotrimerization and Suzuki-Miyaura cross-coupling as key steps.
Synthesis 1581, 2011.

[144]    S. Kotha, D. Bansal, K. Singh. S. Banerjee

Synthesis of new fluorescent macrocyclic α-amino acid derivatives via tandem cross-enyne/ring-closing metathesis cascade catalyzed by ruthenium based catalysts.
J. Organomet. Chem. 1856, 696, 2011.

[143]    S. Kotha, M. Mishram

Synthesis of polycyclic aromatics from a diiodosultine by Suzuki-Miyaura cross-coupling and Diels-Alder reaction.
Heterocycles 1663, 82, 2011.

[142]    S. Kotha, A. Chavan, M. K. Dipak

Synthetic approach to cis and trans-decalins via Diels-Alder reaction and ring-closing metathesis as key steps: further extension to dioxapropellane derivatives by ring-closing metathesis.
Tetrahedron 501, 57, 2011.



2010


[141]    S. Kotha, R. Sivakumar

A simple approach to a curved hexaquinane
Arkivoc 90, 2010.

[140]    S. Kotha, A. Chavan

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.
J. Org. Chem., 4319, 75, 2010.

[139]    S. Kotha, V. Seema, K. Singh K. D. Deodhar

Molecular acrobatics in caged systems: Stratetic utilization of catalytic metathesis and photo-thermal metathesis in polycyclic frames.
Tetrahedron Letts. 2301, 2010.

[138]    S. Kotha, S. Halder

Ethl isocyanoacetate as useful glycine equivalent
Synlett 337, 2010.

[137]    S. Kotha, S. Misra, N. G. Krishna, D. Nagaraju

Diversity oriented approach to 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives using diethyl acetamidomalonate as a glycine equivalent. Further explansion by Suzuki-Miyaura cross-coupling reaction.
Heterocycles 847, 80, 2010.



2009


[136]    S Kotha, D. Kashinath, M. Lopus, D. Panda

Synthesis of nano-sized C3-symmetric 2,4,6-triphenyl-1,3,5-s-triazene and 1,3,5-triphenyl benzene derivatives via the trimerization followed by Suzuki-Miyaura cross-coupling or O-alkylation reaction and their biological evaluation.

Indian. J. Chem. 1766, 48B, 2009..

[135]    S Kotha, P. Khedkhar

Differential reactivity pattern of hybrid o-quinodimethane precursors: Strategic expansion to annulated benzocycloalkanes via Rongalite.

J. Org. Chem. 5667, 74, 2009.

[134]    S. Kotha, M. Mishram, A. Tiwari

Advanced approach to polycyclics by a synergistic combination of enyne metathesis and Diels-Alder reaction

Chem. Soc. Rev. 2065, 38, 2009.

[133]    S. Kotha,  P. Khedkhar

A diversity oriented approach to diphenylalkane derivatives by strategic utilization of [2+2+2] cyclotrimerization, cross-enyne metathesis and Diels-Alder reaction.

Eur. J. Org. Chem 730, 2009.

[132]    S. Kotha, A. Deb, K. Lahiri, E. Manivannan

            Recent synthetic approaches to spirocyclics.

            Synthesis 165, 2009.

[131]    S Kotha, D. Bansal and Vinod Kumar

Synthesis of symmetrical and unsymmetrical trisubstituted benzene derivtives through ring closing alkyne metathesis strategy and depropargylation under various catalyst conditions. .

Indian J.Chem.  225, 2009..

[130]    S. Kotha, K. Mandal

A retrospective on the design and synthesis of nvel molecules through a strategic consideration of metathesis and Suzuki-Miyaura cross-coupling reaction.

Chem. Asian. J. 354,4, 2009.



2008


[129]    S Kotha, S. Misra, S. Halder

Benzannulation.

Tetrahedron  10775, 2008.

[128]    S Kotha, P. Khedkhar

Synthesis of conformationally constrained phenylalanine derivative by a strategic combination of ring-closing enyne metathesis and Diels-Alder reaction.

Synthesis 2925, 2008.

[127]    S. Kotha,  D. Kashinath, S. Kumar

Synthesis of liquid crystalline materials based on 1,3,5-trihenylbenzene and 2,4,6-triphenyl-1,3,5-triazine.

Tetrahedron Lett. 49, 5419, 2008.

[126]    S. Kotha, A. Deb

            Design and synthesis of spiro-heterocycles by ring-closing metathesis.

Indian J. Chem. 47B, 1120, 2008.

[125]    S. Kotha, V. R. Shah
Synthesis of C3-symmetric and C4-symmetric amino acid derivatives via Suzuki-Miyaura cross-coupling reaction.      

            Amino Acids35, 83, 2008.

 

[124]    S. Kotha, V. R. Shah, P. P. Mishra, A. Datta

Design and synthesis of a novel antharacene-based fluorescent probe through the application of the Suzuki-Miyaura cross-coupling reaction

            Amino Acids35, 169, 2008.

[123]     P.Kumaradhas, Kundan R.Gupta, S. Kotha, E. Brahmachari, K.A.Nirmala
Crystal Structure of 2,6-Diisocyno-1,2,3,5,6,7-hexahydro-s-indacene-2,6-dicarboxylic acid diethyl ester.
             Analytical  Sciences  24, 65, 2008.

[122]    S. Kotha,   V. R. Shah

Synthesis of 1-benzazapine derivatives via strategic utilization  of Suzuki-Miyaura cross-coupling, aza-Claisen rearrangement and ring-closing metathesis.

Eur. J. Org. Chem. 1054, 2008.



2007


 [121]    S. Kotha, V. R. Shah

Synthesis of bis and tris-oxazole derivatives via the application of  Suzuki-Miyaura cross-coupling and van Leusen oxazole synthesis.

Synthesis 3653, 2007.

[120]    S. Kotha, K. Lahiri

            Design and synthesis of diverse polycyclic compounds via catalytic metathesis.

            Synlett, 2767, 2007.

[119]    S. Kotha, K. Singh

Cross-enyne and ring-closing metathesis cascade: A building-block approach suitable for diversity oriented synthesis of densely functionalized macro-heterocycles with amino acid scaffolds.

Eur. J. Org. Chem. 5909 2007.

[118]    S. Kotha, D. Kashinath and P. Khedkar

Synthesis of crown based sulfones via Rongalite: Diversity oriented approach to annulated benzocrowns by Diels-Alder reaction.

Synthesis 3357, 2007.

[117]    S. Kotha, K. Mandal

Metathesis of a novel dienediyne system. A unique example involving the usage of in situ generated ethylene as cross-enyne methathesis partner.

J. Organomet. Chem.  629, 4921, 2007.

[116]    S. Kotha, P. Khedkar

            Synthesis of conformationally constrained a-imino acid derivatives via ring-closing metathesis.

           Indian J. Chem. 46B, 975, 2007.

[115]    S. Kotha, V. R. Shah, K. Mandal

            Formation of Arenes via Diallylarenes : Strategic utilization of Suzuki-Miyaura cross-coupling, Claisen rearrangement and ring-closing metathesis.

           Adv. Synth. Cat. 1159, 2007.

[114]    S. Kotha, V. R. Shah, S. Halder, R. Vinodkumar, K. Lahiri

Synthesis of bis-armed amino acid derivatives via the alkylation of ethylisocyanoacetate and the Suzuki-Miyaura cross-coupling reaction.

Amino Acids 387, 2007.

[113]    S. Kotha, S. Banerjee

Synthesis of Novel 1, 2, 3, 4-tetrahydroioquinoline-3-carboxylic acid (Tic) derivatives through the application of Rongalite

Synthesis 1015, 2007.

[112]    S. Kotha,  K. Mandal, S. Banerjee

Synthesis of novel quinone-amino acid hydrbirds via cross-enyne metathesis and Diels-Alder reaction as key steps.

Eur. J. Org. Chem 1244, 2007.

[111]    S. Kotha, K. Lahiri

Expanding the diversity of polycyclic aromatics through Suzuki-Miyaura cross-coupling strategy.

Eur. J. Org. Chem. 1221, 2007.

 



2006


[110]    S. Kotha
            Synthesis of novel polycyclics via catalytic metathesis.
            Punjab Univ. Res. J.  (Science) 56, 223, 2006. (invited article)

[109]    S. Kotha, M. Behera
            Preparation of functionalized tetraphenylmethane derivatives via the Suzuki-Miyaura cross-coupling reaction.
            Indian J. Chem. 45B, 2684, 2006.

[108]    S. Kotha, K. Mandal
            Suzuki-Miyaura cross-coupling and ring-closing metathesis: A strategic combination for the synthesis of cyclophane derivatives.
            Eur. J. Org. Chem. 5387, 2006.

 [107]   S. Kotha, K. Mandal, A. Tiwari, S. M. Mobin
            Diversity-oriented approach to biologically relevant molecular frameworks starting with b-naphthol using Claisen rearrgement and olefin
            metathesis as key steps.
            Chem. Eur. J. 8024, 2006.

[106]    S. Kotha, M. K. Dipak
            Design and synthesis of novel preopellanes via Clasien rearrangement and ring-closing metathesis as key steps.
            Chem. Eur. J. 4446, 2006.

[105]    S. Kotha, S. Banerjee, M. P. Patil, R. B. Sunoj
            Retro Diels-Alder reaction under mild conditions: experimental and theoretical studies.
            Org. Biomol. Chem. 1854, 2006

[104]    S. Kotha, A. Deb, S. Chattopadhyay
            Design and synthesis of spirocyclics via the Diels-Alder reaction and ring-opening cross-metathesis as key steps.
            Lett. Org. Chem. 3, 128, 2006.

 [103]   S. Kotha, A. Ghosh
            A new and simple synthetic approach to functionalized sulphone derivatives by the Suzuki-Miyaura cross-coupling reaction.
            Indian J. Chem. 45(B), 227, 2006.



2005


 [102]   S. Kotha, E. Brahmachary, K. Lahiri

            Tansition metal-catalyzed [2+2+2] cycloaddition and application in organic synthesis.

            Eur. J. Org. Chem. 4741, 2005.

[101]    S. Kotha,   P. Khedkar, A. K. Ghosh
            Synthesis of symmetrical sulfones via rongalite: expansion to cyclic sulfones by ring-closing metathesis.
           
Eur. J. Org. Chem. 3581, 2005.

[100]    S. Kotha, K. Mandal                                                                                                                      

Design and synthesis of cyclophane via Suzuki–Miyura cross-coupling and metathesis as key steps.

 Adv. Synth. Cat 1215, 2005.

[99]      S. Kotha, M. Behera, V. R. Shah

A simple synthetic approach to allylated aromatics via the Suzuki-Miyaura cross-coupling reaction.

            Synlett 1877, 2005.

[98]      S. Kotha,  D. Kashinath

            Synthesis of functionalized benzo-18-crown-6 compounds via the Suzuki-Miyura cross-coupling  reaction.
            Synthesis
971, 2005.

[97]      S. Kotha, A. C. Deb, R Vinodkumar

Design and synthesis of spiro-annulated barbituric acid derivatives and its analogs by ring-closing metathesis reaction as key steps.
Bioorg Med. Chem. Lett. 15, 1039, 2005.

[96]      S. Kotha, K. Lahiri

            Post-assembly peptide modifications by chemical methods.

Curr. Med. Chem. 12, 849, 2005.

[95]      S. Kotha, R. Sivakumar

            An iterative approach to higher polyquinanes.

            Arkivoc  (xi), 78, 2005.

[94]      S. Kotha, S. Halder

Synthesis of macrocyclic cyclophane-based unusual a-amino acid derivatives.

Arkivoc  (iii) 56, 2005.



2004


[93]      S. Kotha, S. Banerjee, K. Mandal

Oxidative dehydrogenation and the aromatization of polycycles using o-iodoxybenzoic acid (IBX). 

Synlett 2043, 2004.

[92]      S. Kotha, A. Ghosh

            Cycloaddition approach to indane based a-amino acid derivatives.

Tetrahedron 60, 10833, 2004.

[91]      S. Kotha, K. Singh

N-Alkylation of diethyl acetamidomalonate: Synthesis of constrained amino acid derivatives by ring-closing metathesis reaction.

Tetrahedron Lett. 45, 9607, 2004.

[90]      S. Kotha, K. Mandal

Microwave assisted Claisen rearrangement on a silica gel support

Tetrahedron Lett. 45, 9603, 2004.

[89]      S. Kotha, M. Behera, P. Khedkar
            Environmentally benign processes for the synthesis of N-formyl amino acid esters
           Tetrahedron Lett. 45, 7589,
2004.

[88]      S. Kotha, A. Ghosh

A Diels–Alder approach for the synthesis of highly functionalized benzo-annulated indane-based a-amino acid derivatives
 via sultine intermediate.

Tetrahedron Lett. 45, 2931, 2004.

[87]      S. Kotha, K. Mandal

A new protocol for benzoannulation by double Claisen rearrangement and ring-closing metathesis reaction as key steps.

Tetrahedron Lett. 45, 2585, 2004.

[86]      S. Kotha, K. Mandal

            Metathetic approach to napthoxepin and spirocyclic molecular frame works.
           Tetrahedron Lett
. 45, 1391, 2004.

 

[85]      P. K. Thallapally, R. K. Jetti, A. K. Katz, H. L. Carrel, K. Singh, K. Lahiri, S. Kotha, R. Bose, G. Desiraju

            Polymorphism of 1, 3, 5-trinitrobenzene induced by trisindane additive

            Angew. Chem. Int. Ed. 43, 1149, 2004.

[84]      S. Kotha, K. Lahiri, D. Kashinath, R. B. Sunoj

Synthesis of C3-symmetric nano-sized polycyclic compounds by trimerization and Suzuki Miyura cross-coupling reactions.

Eur. J. Org. Chem. 4003, 2004.

[83]      S. Kotha, M. Behera

            Alkylation of isonitrile derivatives with 2,2′bis(bromomethyl)1,1′-biphenyl.

Indian J. Chem. 43B, 922, 2004.

[82]      S. Kotha, M. Behera

Synthesis and modification of dibenzylglycine derivatives via the Suzuki-Miyaura cross-coupling reaction.

J. Peptide. Res. 64, 72, 2004.

[81]      S. Kotha, A. Ghosh

The DielsAlder approach for the synthesis of tetralin-based a-amino acid derivatives and their modification by Suzuki-Miyaura cross-coupling reaction.

Synthesis 558, 2004.

[80]      S. Kotha, A. Ghosh

Synthesis of symmetrical and unsymmetrical 9, 10-diarylanthracene derivatives via bis Suzuki-Miyaura cross-coupling reaction

Synthesis 549, 2004.

[79]      S. Kotha, E. Brahmachary

            Synthesis and reactions of silicon containing cyclic a-amino acid derivatives.

J. Organomet. Chem. 689, 158, 2004.

[78]      L. Damodharan, V. Pattabhi, M. Behera, S. Kotha

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] 

J. Molecular. Stru. 705, 101, 2004.

[77]      L. Damodharan, V. Pattabhi, M. Behera,  S. Kotha

      Conformational switching caused by dibenzyl substation at Ca position.

Acta. Cryst. C60, 527, 2004.



2003

 

[76]      S. Kotha, K. Lahiri

Application of the Suzuki Miyaura cross-coupling reaction for the modification of phenylalanine peptides.

Biopolymers 69, 517, 2003.

[75]      S. Kotha, S. Halder

Synthesis of optically active benzocyclobutene and biphenylene based unusual a-amino acid derivatives.

Indian J. Chem. 42B, 863 2003.

[74]      L. Damodhara, V. Pattabhi, R. Sivakumar, S. Kotha

            Precursors to dodecahedrane

            Acta. Cryst. C59, 373, 2003.

[73]     L. Damodharan, V. Pattabhi, M. Behera, S. Kotha

Ethyl-2-formamido-2-(4-iodobenzyl)-3-(4-iodophenyl) propionate and ethyl-2-(3-bromobenzyl)-3-3-bromophenyl)-2-formaidopropionate.

Acta Cryst. C 59, 216, 2003.

[72]      S. Kotha, E. Manivannan

            Synthesis of spirocyclics via ring-closing metathesis reaction.

            Arkivoc, (iii) 67, 2003.

[71]      S. Kotha

The building block approach to unusual a-amino acid derivatives and peptides.

Acc. Chem. Res. 342, 2003



2002

 

[70]      S. Kotha, K. Lahiri, D. Kashinath

            Recent applications of the Suzuki-Miyaura cross-coupling reaction in organic synthesis.

            Tetrahedron 58, 9633, 2002.

[69]      S. Kotha, S. Halder, E. Brahmachary

Synthesis of highly functionalized phenylalanine derivatives via cross-enyne metathesis reactions.

            Tetrahedron 58, 9203, 2002.

[68]      L. Damodaran, V. Pattabhi, N. Shamaladevei, M. Behera, S. Kotha.

Ethyl-6-acetylamino-6,7-dihydro-5H-dibenzo[a,c]cycloheptene-6-carboxylate

            Act. Cryst. C58, 266, 2002.

[67]      S. Kotha, E. Manivannan
             Synthesis of functionalized cis-syn,cis-triquinanes.
             Indian J. Chem
. 41B, 808, 2002.

[66]      S. Kotha, S. Halder, N. Sreenivasachary

Synthesis of dibenzocyclobutenyl glycines derivatives.

            Arkivoc, 21, 2002 (VII).

[65]      S. Kotha, S. Halder, K. Lahiri (nee’ Chakraborty)

Modification of indane-based unusal a-amino acid derivatives via the Suzuki-Miyaura coupling reaction.

Synthesis 339, 2002.

[64]      L. Damodharan, B. S. Ibrahim, V. Pattabhi, S. Halder, S. Kotha

            anti 2,19-Diethoxycarbonyl-2,19-diformylamino[3.2.3.2]paracyclophane.

            Acta Cryst E58, 1038, 2002.

[63]      S. Kotha, A. Ghosh, M. Behera

Synthesis of highly constrained unusual a-amino acid derivatives by the Diels–Alder approach.

            Indian J. Chem. 41B, 2330, 2002.

[62]      S. Kotha, A. K. Ghosh

Synthesis of highly functionalized 9, 10-diarylantharacens via bis Suzuki Miyaura coupling reaction.

            Synlett 451, 2002.

[61]      S. Kotha, R. Sivakumar, L. Damodharan, V. Pattabhi

            Synthesis of two new hexaquinanes: Advanced C20 precursors to dodecahedrane

            Tetrahedron Lett. 43, 4523, 2002.

[60]      S. Kotha, M. Behera, R. Vinod Kumar

Synthesis of highly functionalized dibenzylglycine derivatives via the Suzuki-Miyaura coupling reaction.
Bioorg Med. Chem. Lett. 12, 105, 2002.

[59]      S. Kotha, S. Halder, L. Damodharan, V. Pattabhi
            First and unexpected synthesis of macrocyclic cyclophane-based unusual a-amino acid derivatives by
            phosphazene base without high dilution conditions.
            Bioorg Med. Chem. Lett.
12, 1113, 2002.

[58]      S. Kotha, R. Stoodley

            Enantioselective synthesis of (+)-4-demethoxy-1,4-dimethyldaunomycinone.

            Bioorg Med. Chem 10, 621, 2002.

[57]      S. Kotha, E. Brahmachary

Synthesis of constrained phenylalanine derivatives via a [2+2+2] cycloaddition strategy.
Bioorg Med. Chem.
10, 2291, 2002.



2001


[56]      S. Kotha, N. Sreenivasachary, E. Brahmachary
             Synthesis of benzocycloheptene-based amino acid derivatives via a [4+2] cycloaddition reaction as a key step.
            Tetrahedron 57, 6261, 2001.

[55]      S. Kotha, E. Brahmachary
             First synthesis of indane-based a-amino acid derivatives with crown ether side chain.
            Indian J. Chem
.
40B, 1, 2001.

[54]      L. Damodaran, K. Mohanraja, S. Kotha, S. Durani, V. Pattabhi

            Conformational effects of Ca,a-dipropargylglycine as a constrained residue.
            Biopolymers  59, 330, 2001.

[53]      S. Kotha, N. Sreenivasachary, E. Brahmachary                                  
            Constrained phenylalanine derivatives by enyne metathesis and Diels–Alder reaction.
            Eur. J. Org. Chem. 787, 2001.

[52]      S. Kotha, N. Sreenivasachary
             Synthesis of 1, 2, 3, 4-tetrahydroioquinoline-3-carboxylic acid (Tic) derivatives by cycloaddition approaches.
            Eur. J. Org. Chem. 3375, 2001.

[51]      S. Kotha, E. Manivannan
            Synthesis of spiro-indanes by cycloaddition strategy.
            J. Chem. Soc. Perkin Trans. 1, 2543, 2001.

[50]      S. Kotha, R. Sivakumar, E. Manivannan.
           
Allylation of bicyclo(3.3.0)octane-3,7-dione derivatives via fragmentation methodology.

            Indian J. Chem. 40B, 1245, 2001.

[49]      S. Kotha, K. Lahiri, N. Sreenivasachary

Synthesis of useful benzocyclobutene building blocks via the Suzuki Miyaura coupling reaction.
 Synthesis 1932, 2001.

 

[48]      P. K. Thallapally, K. Chakraborty, A. K. Katz, H. L. Carrell, S. Kotha, G. R. Desiraju

Matching of molecular and supramolecular symmetry. An exercise in crystal engineering.
CrystEngComm
31, 1, 2001

 

[47]      S. Kotha, A. Tafesh, K. Davenport, P. Ortiz.

            Synthesis and carbonylation of arylacetylenes.
            Indian J. Chem
. 40B, 1166, 2001.

 

[46]      S. Kotha, K. Lahiri.

A new approach for modification of phenylalanine peptides by Suzuki Miyaura coupling reaction.
Bioorg Med. Chem. Lett. 11, 2887, 2001.

[45]      S. Kotha, N. Sreenivasachary, K. Mohanraja, S. Durani
            Modification of constrained peptides by ring-closing metathesis reaction.
            Bioorg Med. Chem. Lett. 11, 1421, 2001

[44]      G. Mehta, S. Kotha

            Recent chemistry of benzocyclobutenes.
            Tetrahedron 57, 625, 2001.

[43]      S. Kotha, N. Sreenivasachary.

Synthetic approaches to tetrahydroisoquinoline-3-carboxylic acid derivatives.

            J. Indian. Inst. Sci. 81, 277, 2001.

[42]      S. Kotha, N. Sreenivasachary

            Catalytic metathesis in organic synthesis.

            Indian J. Chem. 40B, 763, 2001.



2000


[41]      S. Kotha, E. Brahmachary
             Synthesis of indane-based unusual a-amino acid derivatives under phase-transfer catalysis conditions.
            J. Org. Chem.
65, 1359, 2000.

[40]      S. Kotha, K. Chakraborty
             Protection and deprotection sequence in tetracyclo[6.3.0.04,11.0.5,9]undeca-2,7-dione system using tetrachlorosilane.

             Indian J. Chem.
39B, 382, 2000.

[39]      P.K. Thallapally, K. Charakborty, H. L. Carrell, S. Kotha, G. R. Desiraju
            Shape and size effects in crystal complexes of 1, 3, 5-trinitrobenzene with some trigonal donars: the
             benzene-thiophene exchange rule.
             Tetrahedron
56, 6721, 2000.

[38]      S. Kotha, N. Sreenivasachary
            A new synthetic approach to 1, 2, 3, 4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives via a
            [2+2+2] cycloaddition reaction.
            Bioorg Med. Chem. Lett.
10, 1413, 2000.

[37]      S. Kotha, T. Ganesh, A. Ghosh
             Diels-Alder approach to tetralin-based constrained a-amino acid derivatives.
             Bioorg Med. Chem. Lett.
10, 1755, 2000.

[36]      S. Kotha, S. Halder, E. Brahmachary, T. Ganesh
             Synthesis of unusual a-amino acid derivatives via cross enyne metathesis reaction.
            Synlett
853, 2000.

[35]      S. Kotha, N. Sreenivasachary
            A new synthetic approach to 1, 2, 3, 4-tetrahydroisquinoline-3-carboxylic acid (Tic) derivatives via enyne
             metathesis and the Diels–Alder reaction.
            Chem. Commun
. 503, 2000.

[34]      S. Kotha, K. Mohanraja, S. Durani
           
Constrained phenylalanine peptides via a [2+2+2]-cycloaddition strategy
            Chem. Commun.
1909, 2000.



1999


[33]      S. Kotha, N. Sreenivasachary, S. Halder
             First synthesis of benzocyclobutene and biphenylene based unusual a-amino acid derivatives.
             Bioorg Med. Chem. Lett.
9, 2565, 1999.

[32]      S. Kotha, E. Manivannan, N. Sreenivasachary, T. Ganesh, A. C. Deb
            Spiro-annulation via ring-closing metathesis reaction.
            Synlett
1618, 1999.

[31]      S. Kotha, K. Chakraborty, E. Brahmachary
            A general and simple method for the synthesis of star-shaped thiophene derivatives.
            Synlett
1621, 1999.

[30]      S. Kotha, E. Manivannan, N. Sreenivasachary
            Allylation of caged diketones via fragmentation methodology
           J. Chem. Soc. Perkin Trans. 1,
2845, 1999.



1998


[29]      S. Kotha, N. Sreenivasachary, E. Brahmachary
            Synthesis of constrained a-amino acid derivatives via enyne-metathesis reaction.
           Tetrahedron Lett.
39, 2805, 1998.

[28]      S. Kotha, E. Brahmachary, N. Sreenivasachary.
            Synthesis of constrained a-amino acid derivatives via Diels-Alder approach.
           Tetrahedron Lett
.
39, 4095, 1998.

[27]      S. Kotha, N. Sreenivasachary
            Synthesis of constrained a-amino acid derivatives via ring-closing olefin metathesis.
           Bioorg Med. Chem. Lett.
8, 257, 1998.

[26]      S. Kotha, A. Joseph, R. Sivakumar, E. Manivannan
             Large scale synthesis of dimethyl 1, 3-acetonedicarboxylate.
             Indian J. Chem.
37B, 397, 1998.



1997


[25]      S. Kotha, E. Brahmachary
            Synthesis of unusual a-amino acids via a [2+2+2] cycloaddition strategy.
            Tetrahedron Lett
. 38, 3561, 1997.

[24]      S. Kotha, E. Brahmachary, R. Sivakumar, A. Joseph, N. Sreenivasachary

A simple route to cyclopentane annulation.
Tetrahedron Lett.
38, 4497, 1997.

[23]      S. Kotha, E. Brahmachary, A. Kuki, D. Anglos, K. Lang, B. Singaram, W. Crisman
             Synthesis of a novel constrained a-amino acid with quinoxaline side-chain:
             7-Amino-6, 7-dihydro-8H-cyclopenta[g]quinoxaline-7-carboxylic acid.
            Tetrahedron Lett.
38, 9031, 1997.

[22]      S. Kotha, E. Brahmachary
            Synthesis of conformationally constrained a-amino acid derivatives using ethyl isocyanoacetate as a glycine equivalent.
            Bioorg Med. Chem. Lett.
7, 2719, 1997.

 

 


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