Total number of publications = 320, citations = 9634, h-index = 56
2023
S. Kotha, P. Khedkar
Synthesis and reactions of heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14] tetradecane- hctd cage compounds ChemistrySelect. 8, e202204257, 2023
S Kotha, M. Salman, S R Cheekatla
Synthesis of pentacycloundecane (pcud) based spiro-pyrano-cage framework via ring-closing metathesis
Molbank, M1567, 2023
S. Kotha, R. R. Keesari, O. Ravikumar
Synthesis of 1,3-cis-fused tricyclic system through regio- and stereoselective epoxidation, and ring-rearrangement metathesis: access to basic core of presilphiperfolanols
Eur. J. Org. Chem., 26, 202201448, 2023
S. Kotha, S. B.U. Solanke
Diversity oriented approach to new tetrahedral building blocks via ring-closing metathesis
ChemistySelect. 8, e202204906, 2023
S. Kotha, S. Ansari, N. Gupta
Selectivity: A goal for synthetic economy
Synlett. 34, DOI: 535, 2023
S. Kotha, G. Mehta
Strain regioselective ring opening cross-metathesis of hybrid cage propellane containing both bicyclo[2.2.1]heptene and bicyclo[2.2.2]octene unit
Synlett. 33, DOI: 10.1055/a-1934-1299, 2023
S Kotha, K. Jena
Ring rearrangement metathesis approach to fused 6/5/6/5/6 oxacyclic ring system and bipentalene derivatives
Synlett.,33, DOI: 10.1055/a-1921-7296, 2023
S. Kotha, A. Agarwal
Synthesis of linear tetraquinanes by [3+2] cycloaddition, chemoselective allylation of 7-keto norbornene and ring-rearrangement metathesis as key steps
Synlett. 33, DOI: 10.1055/s-0042-1751365, 2023
S. Kotha, D. Singh
Synthesis of pyrrole derivatives via ring closing metathesis, clauson-kaas reaction and paal-knorr condensation as key steps
J. Mol. Str. 1275, 134600, 2023
S. Kotha, R. R. Keesari
Design and synthesis of highly decorated oxa-cage systems via olefin-metathesis
Asian J. Org. Chem. 12, e202200624, 2023
S Kotha, G. Mehta
Late-stage modification of cage diones by tandem metathesis
Chem. Asian J. 18, e202201022, 2023
S. Kotha, N. Gupta, S. Ansari
Thiol-Free E-selective approach to dithiacyclophanes via ring-closing metathesis
Asian J. Org. Chem. 12, e202200649, 2023
2022
S. Kotha, R. Usha, , S. Ansari
Early and late stage functionalization of cage systems:Stereochemically divergent synthesis of oxa cages via olefin metathesis
ChemistySelect. 7, e202202497, 2022
S. Kotha, R. R. Keesari
Synthetic studies to fused 5/5/6-Tricycle frameworks: Access to presilphiperfolanol analogues and A, B, C-ring system of idiogenanes, lycopodium, and lycojaponicumin alkaloids
Eur. J. Org. Chem. e202201094, 2022
S. Kotha, S. B.U. Solanke
Modification of tyrosine and 1,8-dihydroxy anthraquinone via olefin metathesis
ChemistySelect. 7, e202203906, 2022
S. Kotha, R. R. Keesari
An intramolecular cycloetherification of unactivated olefinic substrates bearing endo-alcohol: access to diversely alkylated oxa-cage derivatives useful for olefin-metathesis
Chem. Asian. J. 17, e202200848, 2022
S. Kotha, V. Gaikward, R. Usha
Design and Synthesis of Amino Acid Derivatives via Diethyl Acetadimalonate and Late-Stage Modification by Chemical Methods
Asian J. Org. Chem. 11, e202200598, 2022
S. Kotha, B. U. Solanke, P. K. Agarwala, S. Kapoor
Design and synthesis of hetero-steroids via ring-closing metathesis: Biological studies towards in vitro anticancer activity.
Steroids 188, 109119, 2022
S. Kotha, D. Singh, B. Vijayalakshmi
Design and synthesis of urazole derivatives via ring closing metathesis
ChemistrySelect. 7, e202203096, 2022
S. Kotha, P. Meher
Expanding the diversity of pyridines through annulation of keto and diketo compounds
Asian J. Org. Chem., 11, e202200480, 2022
S Kotha, S R Cheekatla
Synthesis of bisoxazole and bromo-substituted aryloxazoles
Molbank 2022, M1440, 2022
S. Kotha, N. K. Gupta, S. Ansari
One pot thiol-free synthetic approach to sulfides, and sulfoxides selectively
RSC Adv. 12, 25154, 2022
S. Kotha, S. Ansari, N. K. Gupta
Annulation tactics of cis-syn-cis triquinanes by allylsilanes: application of Hosomi-Sakurai reaction conditions
Chem. Asian. J., 17, e202200497, 2022
S. Kotha, V. Gaikwad
Synthesis of unusual amino acid derivatives containing bicyclo[2.2.2]octane unit by
the Diels‒Alder approach involving pentacene ChemistrySelect, 6, 7919, 2022.
S. Kotha, A. Agarwal, Y. Tangella
Synthesis of mixed musks via Eschenmoser-Tanabe fragmentation, enyne metathesis
and Diels-Alder reaction as key steps. RSC Adv. 12, 14278, 2022 .
S. Kotha, V. Gaikwad
Design and synthesis of amino acid derivatives containing hydantoin and thiazolidine moieties. J Chem. Sci., 134:58, 2022.
S. Kotha, B. U. Solanke
Modular Approach to Benzofurans, 2H-Chromenes and Benzoxepines via
Claisen Rearrangement and Ring-Closing Metathesis: Access to Phenylpropanoids. Chem. Asian J. 17, e202200084, 2022.
S. Kotha, V. R. Aswar, Y. Tangella
Design and synthesis of spirocycles via olefin metathesis
In “Spiro Compounds: Synthesis and Applications”, edited by R. R. Torres, Wiley, Hoboken, USA, Page No.65-101, 2022.
S. Kotha, V. Gaikwad
Functionalization of Meldrum’s acid by Diels˗Alders approach. Heterocycles 11, 541, 2022.
S. Kotha, A. Fatma
Synthetic approaches to natural and unnatural tetraquinanes Asian J. Org. Chem, 11, e202100595, 2022.
2021
S. Kotha, S. Ansari, N. K. Gupta
Crystal structure of (2aS, 2a1R, 3aR,3a1S, 5aS, 6aR)-2a-allyl-2,4-dichloro-
2a,2a1,3a1,5a,6,6a-hexahydro-3aH-3-oxadicyclopenta [cd, gh] pentalen-3a-ol. IUCr Data, 6, x211260, 2021.
S. Kotha, R. R. Keesari
Synthetic approaches to crinipellin based tetraquinanes via ring-rearrangement
metathesis and ring-closing metathesis Asian J. Org. Chem., 10, 3456, 2021.
S. Kotha, K. Lahiri, Y. Tangella
Recently advances in benzocyclobutene Chemistry. Asian J. Org. Chem., 10, 3166, 2021.
S. Kotha, R. R. Keesari
A modular approach to angularly fused polyquinanes via ring rearrangement metathesis: synthetic access to cameroonanol analogues and the basic core of
subergorgic acid and crinipellin J. Org. Chem., 86, 17129, 2021.
S. Kotha, A. Fatma
Application of sequential ring-opening, and ring-closing metathesis or
ring-rearrangement metathesis to design oxacycles and azacycles ChemistrySelect. 6, 12018, 2021 .
S Kotha, N. Gupta, G. Sreevani and N. R. Panguluri
Design, synthesis and late-stage modification of indane-based peptides via
[2+2+2] cyclotrimerization Chem. Asian J. 16, 3649, 2021.
S. Kotha, A. Agarwal, S. Ansari
Synthesis of Angular Triquinane and [4.3.3] Propellane Derivatives via
Ring-Rearrangement Olefin Metathesis ChemistrySelect 6, 11178, 2021.
S. Kotha, A. Fatma
Synthetic approach to oxacycles via the application of RMM ChemistrySelect 6, 7919, 2021.
S. Kotha, B. U. Solanke, N. K. Gupta
Design and synthesis of C3-symmetric molecules containing oxepine and
benzofuran moieties via metathesis. J. Mol. Str. 1244, 130907, 2021.
S. Kotha, N. Gupta, S. Ansari
5-[(1,3-Dimethyl-5-oxo-2-sulfanylideneimidazolidin-4-ylidene) amino]-2-
methylisoindoline-1,3-dione IUCr data 6, x210322, 2021.
S. Kotha, A. Fatma, S. Ansari
2,3-Dihydro-1H-cyclopenta [b] naphthalene-4,9-dione IUCr data 6, x210167, 2021.
S. Kotha, S Pulletikurti, A. Fatma, G. Dhangar, G. S. Naidu
Synthesis of polycycles and oxacycles by tandem metathesis of
endo–norbornene derivatives Synthesis, 53, 1931, 2021.
S. Kotha, A. Fatma
Synthetic approaches to anti-cancer agent fedrecamycin A Asian J. Org. Chem. 10, 129, 2021.
2020
S. Kotha, S Pulletikurti
Synthesis of spiro-annulated cyclobutane derivatives through ketene [2+2] cycloaddition and ring-rearrangement metathesis. Indian J Chem. 59B, 1875, 2020.
S Kotha, S Pulletikurti
Synthetic approach to oxa-triquinanes via olefin metathesis as a key step Indian J Chem. 59B, 1868, 2020.
S. Kotha, S. R. Cheekatla, M. Meshram
Design and synthesis of cage molecules as high energy density materials for aerospace applications. ChemCatChem. 12, 6131, 2020.
S. Kotha, S. Ansari, N. Gupta
(E)-3-Thia-1,5(1,3)-dibenzenacycloundecaphan-8-ene-6,11-dione 3,3-dioxide IUCr data. 5, x201464, 2020.
S. Kotha, S. R. Cheekatla, U. N. Chaurasia
Annulated oxa-cage frameworks via Claisen rearrangement and ring-closing metathesis Tetrahedron 76, 131694, 2020.
S. Kotha, S. R. Cheekatla, Sohal Lal, Lovely Mallick, N. Kumbakarna A. Chowdhury and I. N.N. Namboothiri
Pentacycloundecane (PCUD) based cage frameworks as potential energetic materials: syntheses and characterization Asian J. Org. Chem. 9, 2116, 2020.
S. Kotha, Y. Tangella
Modular approaches to cyclopentanoids and their heteroanalogs. Synlett 31, 1976, 2020.
S. Kotha, N. Gupta, S. Ansari
Facile synthetic route to [3.n] thiacyclophanes through ring-closing metathesis and their structural studies. Eur. J. Org. Chem., 6929, 2020.
S. Kotha, S. Ansari, S. R. Cheekatla
7-Methoxypentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione IUCr Data 5, x201380, 2020.
S. Kotha, S. R. Cheekatla
Synthesis of cis-syn-cis and cis-anti-cis linear triquinanes via photo-thermal metathesis Indian J Chem. 59B, 1556, 2020.
S Kotha and S R Cheekatla
Design and synthesis of pentacycloundecane cage compound containing oxazole moiety. Heterocycles, 100, 1623, 2020.
S Kotha and S R Cheekatla
A new skeletal rearrangement of 1,7-dimethyl Cookson’s cage dione catalyzed by a Lewis acid Org. Biol. Chem. 18, 1377, 2020 .
S. Kotha, A. Fatma
Construction of [5/7/5] fused tricyclic sulfones via ring-rearrangement metathesis. Chemselect 5, 1929, 2020.
S. Kotha, S. R. Cheekatla
Synthesis of cage heterocycles containing tetrahydrofuran and pyran ring systems via Grignard addition and ring-closing metathesis Indian J Chem. 59B, 75, 2020.
S. Kotha, S. R. Cheekatla
Design, synthesis, and rearrangement studies of gem-dimethyl containing cage systems Tetrahedron, 76, 130898, 2020.
S. Kotha, S. Ansari, S. R. Cheekatla, M. K. Dipak
Synthesis of oxa-cage compounds by ketalization and ring-closing metathesis Tetrahedron, 76, 130856, 2020.
S. Kotha, R. R. Keesari, A. Fatma, R. Gunta
Synthetic strategies to diverse polyquinanes via olefin metathesis:Access to the basic core of crinipellin, presilphiperfolanol, and cucumin J. Org. Chem., 82, 851, 2020.
S. Kotha, S. Pulletikurti
Lewis acid mediated synthesis of indolizidine derivatives Heterocycles 101, 717, 2020.
2019
G Sreevani, S Kotha
Method of synthesis of heterocycles and carbocycles using [2+2+2] cyclotrimerization Indian Pat. Appl. IN 201721034066 A 20190712, 2019.
S. Kotha, D. Bansal, A. S. Chavan
Diversity-oriented approaches to polycycles and heterocycles via enyne metathesis and diels-alder reaction as key steps ACS Omega, 4, 22261, 2019
S Kotha and S R Cheekatla
Synthesis and acid-catalysed rearrangement of cage propellanes ChemistrySelect 4, 13440, 2019
S. Kotha, M. Meshram
Development of new synthetic strategies, tactics and their applications Chemical Record, 19, 2480, 2019.
S. Kotha, M. Meshram, V. R. Aswar
Application of ring-rearrangement metathesis in organic synthesis: A grand design Tetrahedron Lett. 60, 151337, 2019
S. Kotha S. Kotha, G. Sreevani, L. U. Dzhemileva, M. M. Yunusbaeva, U. M. Dzhemilev, V. A. D'yakonov
Diversity-oriented synthesis of spirothiazolidinediones and their biological evaluation. Beilstein J. Org. Chem. 15, 2774, 2019
S. Kotha, S. R. Cheekatla, M. Meshram, B. Vijayalakshmi, S. Vittal
Realization of photo-thermal metathesis under microwave irradiation conditions: An entry to triquinane frameworks Asian JOC. 8, 2097, 2019.
S. Kotha, S. R. Cheekatla, A. Fatma
Synthetic approach to ABCD ring system of anticancer agent fredericamycin A via Claisen rearrangement and ring-closing metathesis as key steps. ACS Omega , 4, 17109, 2019 .
S. Kotha, S. Pulletikurti
A metathetic approach to [5/5/6] aza-tricyclic core of dendridine, kopsanone, and lycopalhine a type of alkaloids. Synthesis , , 51, 3981, 2019 .
S. Kotha, R. R. Keesari, S. Ansari
Synthesis of aza-polyquinanes via Fischer indolization and ring-rearrangement metathesis as key steps. Synthesis ,51, 3989 2019 .
S. Kotha, N. K. Gupta, V. R. Aswar
Multicomponent approach to hydantoin and thiohydantoins involving a deep eutectic solvent. Chem. Asian J. , 14, 3188, 2019 .
S. Kotha, R. Ali
A simple synthetic strategy to ?-conjugated spirofluorene. J Chem. Sci. , 131, 66, 2019 .
S. Kotha, M. Meshram, N. R. Panguluri, V. Shah, T. Saidulu, M. E. Shirbhate
Synthetic Approaches to Star-Shaped Molecules with 1,3,5-Trisubstituted Aromatic Cores Chem. Asian J. ,14, 1356, 2019 .
S Kotha, M. Meshram, N. R. Panguluri
Advanced Approaches to Post-Assembly Modification of Peptides by Transition-Metal-Catalyzed Reactions Synthesis , 51, 1913, 2019 .
S. Kotha, R. Gunta
Synthesis of alkenyl sulfones containing norbornene moiety Heterocycles ,98, 271, 2019 .
S. Kotha, S. Ansari, V. R. Aswar
Selectivity in ring-closing metathesis: Synthesis of propellanes and angular aza-triycles Adv. Synth. Catal. , 361, 1376 2019 .
S. Kotha, T. Saidulu
Synthesis of C3-symmetric star-shaped molecules containing 1,3-azoles via hetero-aryl Heck coupling Tetrahedron ,75, 1359, 2019 .
S Kotha, T. Saidulu
Synthesis of C3-symmetric star-shaped molecules containing ?-amino acids and dipeptides via Negishi coupling as a key step Beilstein J. Org. Chem. , 15, 371, 2019 .
S. Kotha, P. Khedkar, Y. Dommaraju
Synthetic application of rongalite: A green tool in the service of Diels?Alder Chemistry and beyond Tetrahedron Lett. Digest , 60, 631, 2019 .
S. Kotha, Y. Dommaraju, S. Pulletikurti
Ring-opening metathesis of n-alkenyl ?-lactams Heterocycles ,98,79, 2019 .
S. Kotha, S. R. Cheekatla
Synthesis of functionalized cage propellanes and D3-Trishomocubanes via the ring-closing metathesis and acid-promoted rearrangement Tetrahedron. , 75, 84, 2019.
2018
S Kotha, R. Ali, N. R. Panguluri, A. C. Deb
Design and synthesis of spirotruxene and spirofluorene derivatives Indian J. Chem. 57B, 1489, 2018 .
S. Kotha, S. R. Cheekatla
Synthesis of cage [4.4.2]propellanes and D3- trishomocubanes bearing spiro linkage. J. Chem. Sci. 130, 171, 2018 .
S. Kotha, G. Sreevani
Synthesis of Spiro Barbiturates and Meldrum's Acid Derivatives via a [2+2+2] Cyclotrimerization. Synthesis , 50, 4883, 2018 .
S. Kotha, R. Gunta, S. R. Cheekatla, D. Mhatre
Spiro[cyclopentane-1,11'-hexacyclo[7.6.0.01,6.06,13.08,12.010,14] pentadecane]-7',15'-dione. IUCrData 3 , x181590, 2018 .
S. Kotha, M. Meshram, Y. Dommaraju
Design and synthesis of polycycles, heterocycles and macrocycles via strategic utilization of ring-closing metathesis. Chemical Record , 18, 1613, 2018 .
S. Kotha, G. Sreevani
Diversity oriented approach to spirorhodanines via a [2+2+2] cyclotrimerization Eur. J. Org. Chem. 5935, 2018
S. Kotha, R. Ali, N. R. Panguluri, A Datta, K. K. Kannaujiya
Synthesis and photophysical properties of star-shaped blue green emitting π-conjugated spirotruxenes Tetrahedron. Lett. , 59, 4080, 2018 .
S. Kotha, K. Lahiri, G. Sreevani
Design and Synthesis of Aromatics through [2+2+2] Cyclotrimerization. Synlett 29, 2342, 2018 .
S. Kotha, T. Saidulu, V. R. Aswar
Design and synthesis of C3-symmetric molecules bearing propellane moieties via cyclotrimerization and a ring-closing metathesis sequence Beilstein J. Org. Chem. 14, 2537, 2018 .
S. Kotha, M. Meshram, Ch. Chandravathi
Synergistic approach to polycycles through Suzuki Miyaura cross-coupling and metathesis as key steps. Beilstein J. Org. Chem. 14, 2468, 2018 .
S. Kotha, S. R. Cheekatla, M. Meshram
Synthetic approach to oxa-cage systems via ring-closing metathesis Heterocycles 97, 1008, 2018 .
S. Kotha, M. Meshram
Application of organometallics in organic synthesis J. Organomet. Chem. , 874, 13, 2018 .
S. Kotha, M. Meshram
Application of claisen rearrangement and olefin metathesis in organic synthesis Chem. Asian J., 13, 1758, 2018.
S. Kotha, S. R. Cheekatla, R. Gunta
Hexacyclo[6.5.1.01,5.05,12.07,11.09,13]tetradecane-4,6,14-trione. IUCrData 3, x180852, 2018.
S. Kotha, S. R. Cheekatla
Molecular acrobatics in polycyclic frames: Synthesis of functionalized D3- trishomocubanes via the rearrangement approach. J. Org. Chem., 83, 6315, 2018.
S. Kotha, G. Sreevani
Synthesis of benzyl halide derivatives of spirohydantoins via [2+2+2] cyclotrimerization reaction. Tetrahedron. Lett., 59, 1996, 2018.
S. Kotha, S. Pulletikurti
Synthesis of propellanes containing a bicyclo[2.2.2] octene unit via the Diels-Alder reaction and ring-closing metathesis as key steps. RSC Adv., 8, 14906, 2018.
S Kotha, S. Todeti, T Das, A Datta
Synthesis of star-shaped pyrrole-based C3-symmetric molecules via ring-closing metathesis, Buchwald-Hartwig cross-coupling and Clauson-Kaas pyrrole synthesis as key steps Tetrahedron. Lett., 59, 1023, 2018.
S. Kotha, G. Sreevani
[2 + 2 + 2] cyclotrimerization with propargyl halides as copartners: Formal total synthesis of the antitumor hsp90 inhibitor at 13387 ACS Omega, 3, 1850, 2018.
S. Kotha, S. R. Cheekatla, R. Gunta
7-Hydroxyhexacyclo[7.5.1.01,7.06,13.08,12.010,14]-pentadecan-15-one-11- Spirocyclopentane. IUCr Data, 3, x180090, 2018.
S Kotha, S. Todeti, T Das, A Datta
Synthesis and photophysical properties of C3-symmetric star-shaped molecules containing heterocycles: A new tactics for multiple fischer indolization ChemistrySelect., 3, 136, 2018.
2017
S Kotha, M. Saifuddin, R. Ali, M. E. Shirbhate, G. Sreevani
Two directional approach to spirocycles containing bicyclo[2.2.2]octane system via a [2+2+2] co-trimerization and Diels-Alder reaction. Indian J. Chem.,56B,1231, 2017.
S. Kotha, G. Sreevani
A short synthetic route to benzosultine-sulfone using rongalite and [2+2+2]-cyclotrimerization ChemistrySelect., 2, 10804, 2017.
S. Kotha, S R Cheekatla, D Mhatre
Ring-Closing metathesis approach to cage propellanes containing oxepane and tetrahydrofuran hybrid system Synthesis,49, 5339, 2017.
S Kotha, V R. Aswar, A K. Chinnam
One-pot synthesis of carbazoles from indoles via a metal free benzannulation Tetrahedron. Lett., 58 4360, 2017.
S Kotha, V R. Aswar, G Singhal
Synthesis of tricyclic units of indole alkaloids: Application of Fischer indolization and olefin metathesis. Tetrahedron,73, 6436, 2017.
S Kotha, A. K. Chinnam
Synthesis of indane-based [n.3.3] propellane derivative via ring-closing methasis. Indian J. Chem.,56B, 1065, 2017.
S Kotha, S Todeti, M. Bala Gopal, and A Datta
Synthesis and photophysical properties of c3?symmetric star-shaped molecules containing heterocycles such as furan, thiophene, and oxazole ACS Omega,2, 6291, 2017.
S. Kotha, R. Gunta
Synthesis of intricate fused n-heterocycles via ring-rearrangement metathesis. J. Org. Chem.,82, 8527, 2017.
S. Kotha, N. R. Panguluri, R. Ali
Design and synthesis of spriocycles Eur. J. Org. Chem.,5316, 2017.
S. Kotha, S R Cheekatla
A new synthetic approach to c2-symmetric octacyclic cage diol via claisen rearrangement and ring-closing metathesis as key steps ChemistrySelect,2, 6877, 2017.
S. Kotha, S R Cheekatla, B Mandal
Synthesis and rearrangement of cage [4.3.2]propellanes that contain a spiro linkage Eur. J. Org. Chem., 4277, 2017.
S. Kotha, Ch. Chandravathi
Application of Fischer indolization under green conditions using deep eutectic solvents. Chemical Record.,17, 1039, 2017.
S. Kotha, G. Sreevani
Short synthetic route to a hybrid molecule benzosultine-sulfone via [2+2+2] cyclotrimerization using Mo(CO)6. Heterocycles,95, 1204, 2017.
S. Kotha, N. Nageswar Rao, O. Ravikumar, G. Sreevani
Isomerization and functionalization of 2:1 Diels-Alder adducts of cyclopentadiene and p-benzoquinone: Applications to polycycles via ring-closing metathesis and ring-opening metathesis as key steps Tetrahedron Lett.,58, 1283, 2017.
2016
S. Kotha, M. E. Shirbhate, A. K. Chinnam, G. Sreevani
Synthesis of pheanthroline and indole based hybrid-cyclophanes derivatives via ring-closing metathesis. Heterocycles , 93, 399, 2016
S. Kotha, S. Mishra, N. G. Krishna, B. Vijayalakshmi, M. Saifuddin, N. Devunuri
Diversity oriented approach to 1,2,3,4-tetrahydroisoquinoline-3-carboxylic (Tic) derivatives. Heterocycles , 93, 185, 2016
S. Kotha, S R Cheekatla, A K Chinnam, T Jain
Design and synthesis of polycyclic bisindoles via Fischer indolization and ring-closing metathesis as key steps. Tetrahedron Lett., 57, 5605, 2016
S. Kotha, O. Ravikumar, G. Sreevani
Design and synthesis of oxacycles from norbornene derivatives via ring-opening metathesis and ring-rearrangement metathesis. Tetrahedron , 72, 6611, 2016
S. Kotha, M Saifuddin, V. R. Aswar
Diversity-Oriented Approach to Indolocarbazoles via Fischer Indolization and Olefin Metathesis: Total Synthesis of Tjipanazole D and I. Org. Biomol. Chem., 14, 9868, 2016
S. Kotha, A. K. Chinnam, N. Sreenivasachary, R. Ali
Design and synthesis of polycyclic indoles under green conditions via Fischer indolization. Indian J. Chem., 55B, 1107,2016
S. Kotha, R. Ali
Two directional approach to spirocyclic ethers via Grignard reaction and via ring-closing metathesis. Indian J. Chem., 55B, 1099, 2016
S. Kotha, R. Gunta
Bridgehead vicinal diallylation of norbornene derivatives and extension to propellane derivatives via ring-closing metathesis. Beilstein J. Org. Chem. , 12, 1877, 2016
S. Kotha, O. Ravikumar
Ring-rearrangement metathesis approach to polycycles: Substrate controlled stereochemical outcome during Grignard addition. Eur. J. Org. Chem., 3900, 2016
S. Kotha, V. Bandi, R. Gunta, S. Gaddamedi.
Hexacyclo[7.5.1.01,6.06,13.08,12.010,14]pentadecane-7,15-dione IUCr Data ,1, x161173, 2016
S. Kotha, R. Gunta
A new synthetic strategy to 2,3-diallyl-1,4-quinones via one-pot double Claisen rearrangement and retro Diels-Alder reaction. Tetrahedron Lett., 57, 3021, 2016
S. Kotha, V. R. Aswar
Target specific tactics in olefin metathesis. Synthetic apparoch to cis-syn-cis triquinanes and propellanes. Org. Lett.,18, 1808, 2016
S. Kotha, O. Ravikumar
Synthesis of fused azacycle via Overman rearrangement and ring-rearrangement metathesis as key steps. Tetrahedron Lett. ,72, 2306, 2016
S. Kotha, V. R. Aswar, M. Amarender
A four-step route to synthetic equivalents of ortho-xylylenes:Döbenzannulation, desilylation, bromo-dehydroxylation, and sultine formation. A concise approach to oxygenated linearly fused polycyclic aromatics. Tetrahedron, 72, 2306, 2016
2015
S Kotha,* M E. Shirbhate
A General Synthetic Approach to para-Cyclophanes via Ring-Closing Metathesis Indian J. Chem. 54B, 1483-1494, 2015
S. Kotha, R. Ali
Synthesis of spirocycles via ring-closing metathesis, Fischer indolization and Suzuki-coupling Turkish J. Chem., 39, 1190, 2015.
S. Kotha, R. Ali, M. Saifuddin
Diversity oriented approach to natural product inspired pyrano-carbozole derivatives: Strategic utilization of hetero Diels?Alder reaction, Fischer indolization and the Suzuki?Miyaura Cross-coupling reaction. Tetrahedron 71, 9003, 2015.
S. Kotha, G. Sreevani
Molybdenum hexacarbonyl: Air stable and useful catalyst for microwave assisted intermolecular [2+2+2] co-trimerization involving alkynyl halides Tetrahedron Lett. 56, 5903, 2015.
S. Kotha,M. Mesharam, P. Khedkar, S. Benerjee, D. Deodhar
Recent application of ring-rearrangement metathesis in organic synthesis Beilstein J. Org. Chem. 11, 1833, 2015.
S. Kotha, R. Gunta
Synthesis of oxabowls and propellane derivatives via ring-rearrangement metathesis as key step Beilstein J. Org. Chem. 11, 1727, 2015.
S. Kotha, A. K. Chinnam, M. Shirabate
Diversity-oriented approach to cyclophanes via Fischer indolization and ring-closing metathesis: Substrate controlled stereochemical outcome in RCM. J.Org. Chem. 80, 9141, 2015.
S. Kotha, A. K. Chinnam, M. Shirabate
Design and synthesis of hybrid cyclophanes containing thiophene and indole units via Grignard reaction, Fischer indolization and ring-closing metathesi Beilstein J. Org. Chem. 11, 1514, 2015.
S. Kotha, O. Ravikumar
Synthesis of azacycles via the Beckmann rearrangement, and ring-rearrangement metathesis as key steps Beilstein J. Org. Chem. 11, 1503, 2015.
S. Kotha, M. Shirabate, A. Chavan, G. T. Waghule
Diversity oriented approach to cyclophane derivatives via Claisen rearrangement and ring-closing metathesis as key steps. J. Indian Chem. Soc. 92, 1299, 2015.
S. Kotha, R. Gunta
Design and synthesis of polycyclic sulfones via the Diels?Alder reaction and ring-rearrangement metathesis as key steps Beilstein J. Org. Chem. 11, 1373, 2015.
S. Kotha, M. Saifuddin, R. Ali, G. Sreevani
Sprio annulation of caged polycycles via Grignard reaction and ring-closing metathesis as key steps Beilstein J. Org. Chem. 11, 1367, 2015.
S. Kotha, R. Ali
Diversity oriented approach to novel spriocycles via 1,2,4,5-tetrakis(bromomethyl) benzene under operationally simple reaction conditions. Tetrahedron 71, 6944, 2015.
S. Kotha, G. T. Waghule, M. Shirabate
Selected synthetic strategies to cyclophanes Beliestein J. Org. Chem. 11, 1274, 2015.
S. Kotha, O. Ravikumar
Design and synthesis of fused polycycles via the Diels?Alder reaction and ring-rearrangement metathesis as key steps Beilstein J. Org. Chem. 11, 1259, 2015.
S. Kotha, A. K. Chinnam, R. Ali
Hybrid macrocycle formation and spiro annulation oncis-syn-cistricycle[6.3.0.02,6]undeca 3,11-dione and its congeners via Fischer indolization and ring-closing metathesis Beliestein J. Org. Chem. 11, 1123, 2015.
S. Kotha, R. Ali
Diversity oriented approach to spriooxindoles: Application of a green reagent "rongalite" Tetrahedron Letts. 56, 3992, 2015.
S. Kotha, A. S. Chavan, D. Goyal
Diversity Oriented Approaches to Polycyclics and Bio-inspired Molecules via the Diels-Alder Strategy: Green Chemistry, Synthetic Economy and Beyond. ACS Comb. Chem. 17, 253, 2015.
S. Kotha, M. Meshram, G. Muthusamy
Synthesis of conformationally constrained a-amino acid derivatives containing bicyclo[2.2.2] octane unit via the Diels?Alder reaction and the Suzuki-Miyaura cross coupling as key steps. Indian J. Chem. B. 54B, 505, 2015.
S. Kotha, R. Ali
Diversity oriented approach to bisspriocyclics via [2+2+2] cycloaddition and the Diels?Alder reaction as key steps. Tetrahedron Letts. 56, 2172, 2015.
S. Kotha, R. Ali
Bidirectional approach to symmetrical sprio-1,3-bisketonevia Grignard reaction and two fold ring-closing metathesis as key steps. J. Indian Chem. Soc. 92, 277, 2015.
S. Kotha, V. Seema. S. Banerjee, M. K. Dipak
Diversity oriented apparoach to polycyclics via cross-enyne metathesis and Diels?Alder reaction as key steps. J. Chem. Sci. 127, 155, 2015.
S. Kotha, R. Ali
Diversity oriented approach to linearly fused spriocyclics via strategic utilization of [2+2+2] cycloaddition and the Diels-Alder reaction as key steps. Tetrahedron 71, 1597, 2015.
Kotha, S.; Ali R.; Srinivas, N.; Krishna, N. G.
Diversity-oriented approach to spirocycles with indole moiety via Fischer indole cyclization, olefin metathesis and Suzuki-Miyaura cross-coupling reactions Tetrahedron ,71, 129, 2015.
Kotha, S.; Chinnam, A. K.
Design of aza-polyquinanes via Fischer-Indole cyclization under green conditions Heterocycles 90, 690, 2015.
Kotha, S.; Waghule, G. T.
New approach to cyclophanes containing ethyleneoxy bridge by Glaser-Eglinton coupling Heterocycles, 90, 1289, 2015
S. Kotha, M. Meshram
Design and synthesis of conformationally constrained bicyclo[2.2.2]octane-based unusual α-amino acid derivatives via the Diels-Alder reaction. Heterocycles, 90, 357, 2015.
S. Kotha, R. Ali
Diversity oriented approach to oxepine derivatives: further expansion via Diels-Alder reaction Heterocycles, 90, 645, 2015.
S. Kotha, B. Vijayalakshmi
Diversity oriented approach to phenylalanine derivatives via the Diels-Alder reaction involving sulfolene intermediates. Heterocycles 90, 226, 2015.
2014
S. Kotha, M. K. Dipak
Design and synthesis of novel bis-annulated caged polycycles via ring-closing metathesis: Pushpakenediol Beilstein J. Org. Chem. 10, 2664, 2014.
S. Kotha, M. E. Shirbhate
Design of new synthetic strategies to cyclophane derivatives via ring-closing metathesis Tetrahedron Lett., 55, 6972, 2014.
S. Kotha, S. Banerjee, M. Shaikh
Correlation between carbon-carbon bond length and the retro Diels-Alder reaction of spirocyclic adduct J. Chem. Sci.,126, 1369, 2014.
Kotha, S.; Seema, V.; Deodhar, D.; Shaikh, M
Crystal structures of 3,6-diallyltetracyclo-[6.3.0.04,11.05,9]undeca-2,7-dione and 1,7-diallylpentacyclo[5.4.0.02,6. 03,10.05,9]undecane-8,11-dione: allylated caged compounds Acta Crystallographica, E70, 410, 2014
Kotha, S.; Sreenivasachari, N.; Deodhar, D.; Shaikh, M
Structure of pentacyclo[5.4.0.02,6.03,l0.05,9]undeca-8,11-one ethylene dithioketal Acta Crystallographica, E70, 246, 2014
Kotha, S.; Deodhar, D.; Khedkar, P.
Diversity-oriented synthesis of medicinally important 1,2,3,4-tetrahydroisoquinoline -3-carboxylic acid (Tic) derivatives and higher analogs Org. Biomol. Chem., 12, 9054, 2014.
Kotha, S.; Gunta, R.
Structure of (1R,3S,3aR,4S,7R,7aS)-1,3-diallyl-1,3,3a,4,7,7a-hexahydro-4,7-methanobenzo[c]thiophene 2,2-dioxide Acta Crystallographica, E70, 1163, 2014.
Kotha, S.; Ravikumar, O.
Design and synthesis of oxa-bowls via Diels-Alder reaction and ring-rearrangement metathesis as key steps Tetrahedron Lett.,55, 5781, 2014.
S. Kotha, R. Ali, A. K. Chinnam
Diversity oriented approach to spirocycles via ring-closing metathesis Tetrahedron Lett.,55, 4492, 2014.
S. Kotha, O. Ravikumar
Diversity oriented approach to carbocycles and heterocycles via ring-rearrangement metathesis, Fischer-indole cyclization and Diels-Alder reaction as key steps Eur. J. Org. Chem., 5582, 2014.
S. Kotha, G. Waghule
Design and synthesis of cyclophane derivatives via Claisen rearrangement and RCM as key steps. Tetrahedron Lett., 55, 4264, 2014
S. Kotha, R. Ali, A. Tiwari
Diversity oriented approach to angularly annulated spirocyclics involving enyne metathesis and Dield-Alder reaction as key steps. Synthesis, 2471, 2014.
Kotha, S.; Bandarugutta, V. B.; Krishna, N. G.
Diversity oriented approach to unusual amino acid derivatives and heterocyclesvia methyl 2-acetamidoacrylate and its congeners Tetrahedron, 70, 5361, 2014.
S. Kotha, M. Meshram
Synthesis of novel fluoranthene-based conformationally constrained α-amino acid derivatives and polycyclic aromatics via the Diels-Alder reaction. Synthesis, 46, 1525, 2014
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.
S. Kotha, G. Waghule, M. Shirabhate
Diversity oriented approach to normuscone and its higher analogues by ring-closing metathesis. Eur.J. Org. Chem., 984, 2014.
S. Kotha, A. K. Chinnam
Anomalous behavior of cis-bicyclo[3.3.0]octane-3,7-dione and its derivatives during two fold Fischer?indole cyclization using low melting mixtures. Synthesis, 301, 2014.
2013
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.
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. Beilstein J. Org. Chem. 9, 2709, 2013.
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.
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.
S. Kotha, S. Mistra, G. Sreevani, V. B. Bandarugattu
Non metathetic behavior metathesis catalysts Curr. Org. Chem. 17, 2774, 2013.
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.
S. Kotha, S. Banerjee
Recent developments in retro-Diels-Alder reaction RSC Adv. 3, 7642, 2013.
2012
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.
S. Kotha, M. E. Shirbhate
Diversity oriented approach to macrocyclic cyclophane derivatives by ring-closing metathesis. Synlett 2183, 2012.
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.
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.
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.
S. Kotha, P. Khedkar
Rongalite: A useful green reagent in organic synthesis Chem. Rev. 1650, 112, 2012.
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.
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.
S. Kotha, M. K. Dipak
Strategies and tactics in olefin metathesis Tetrahedron 397, 68, 2012.
2011
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.
S. Kotha, N. G. Krishna
Synthetic approach to linearly annulated tetralin-based constrained alpha-amino acid derivatives via Rongalite. Current Science 923, 101, 2011.
S. Kotha, N. G. Krishna, S. Misra, P. Khedkar
Synthesis of linearly and angularly fused constrained alpha amino acid derivatives. Synthesis 2945, 2011.
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.
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.
S. Kotha, M. K. Dipak, S. M. Mobin
Serdipitous and acid catalyzed synthesis of spirolactones. Tetrahedron 4616, 67, 2011.
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.
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.
S. Kotha, M. Mishram
Synthesis of polycyclic aromatics from a diiodosultine by Suzuki-Miyaura cross-coupling and Diels-Alder reaction. Heterocycles 1663, 82, 2011.
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
S. Kotha, R. Sivakumar
A simple approach to a curved hexaquinane Arkivoc 90, 2010.
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.
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.
S. Kotha, S. Halder
Ethl isocyanoacetate as useful glycine equivalent Synlett 337, 2010.
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
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.
.
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.
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.
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.
S. Kotha, A. Deb, K. Lahiri, E. Manivannan
Recent synthetic approaches to spirocyclics. Synthesis 165, 2009.
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..
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
S Kotha, S. Misra, S. Halder
Benzannulation. Tetrahedron 10775, 2008.
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.
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.
S. Kotha, A. Deb
Design and synthesis of spiro-heterocycles by ring-closing metathesis. Indian J. Chem. 47B, 1120, 2008.
S. Kotha, V. R. Shah
Synthesis of C3-symmetric and C4-symmetric amino acid derivatives via Suzuki-Miyaura cross-coupling reaction. Amino Acids. 35, 83, 2008.
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 Acids. 35, 169, 2008.
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.
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
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.
S. Kotha, K. Lahiri
Design and synthesis of diverse polycyclic compounds via catalytic metathesis. Synlett, 2767, 2007.
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.
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.
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.
S. Kotha, P. Khedkar
Synthesis of conformationally constrained a-imino acid derivatives via ring-closing metathesis. Indian J. Chem. 46B, 975, 2007.
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.
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.
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.
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.
S. Kotha, K. Lahiri
Expanding the diversity of polycyclic aromatics through Suzuki-Miyaura cross-coupling strategy. Eur. J. Org. Chem. 1221, 2007.
2006
S. Kotha
Synthesis of novel polycyclics via catalytic metathesis. Punjab Univ. Res. J. (Science) 56, 223, 2006. (invited article)
S. Kotha, M. Behera
Preparation of functionalized tetraphenylmethane derivatives via the Suzuki-Miyaura cross-coupling reaction. Indian J. Chem. 45B, 2684, 2006.
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.
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.
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.
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
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.
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
S. Kotha, E. Brahmachary, K. Lahiri
Tansition metal-catalyzed [2+2+2] cycloaddition and application in organic synthesis. Eur. J. Org. Chem. 4741, 2005.
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.
S. Kotha, K. Mandal
Design and synthesis of cyclophane via Suzuki–Miyura cross-coupling and metathesis as key steps. Adv. Synth. Cat. 1215, 2005.
S. Kotha, M. Behera, V. R. Shah
A simple synthetic approach to allylated aromatics via the Suzuki-Miyaura cross-coupling reaction. Synlett. 1877, 2005.
S. Kotha, D. Kashinath
Synthesis of functionalized benzo-18-crown-6 compounds via the Suzuki-Miyura cross-coupling reaction. Synthesis 971, 2005.
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.
S. Kotha, K. Lahiri
Post-assembly peptide modifications by chemical methods. Curr. Med. Chem. 12, 849, 2005.
S. Kotha, R. Sivakumar
An iterative approach to higher polyquinanes. Arkivoc (xi), 78, 2005.
S. Kotha, S. Halder
Synthesis of macrocyclic cyclophane-based unusual a-amino acid derivatives. Arkivoc (iii) 56, 2005.
2004
S. Kotha, S. Banerjee, K. Mandal
Oxidative dehydrogenation and the aromatization of polycycles using o-iodoxybenzoic acid (IBX). Synlett 2043, 2004.
S. Kotha, A. Ghosh
Cycloaddition approach to indane based a-amino acid derivatives. Tetrahedron 60, 10833, 2004.
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.
S. Kotha, K. Mandal
Microwave assisted Claisen rearrangement on a silica gel support Tetrahedron Lett. 45, 9603, 2004.
S. Kotha, M. Behera, P. Khedkar
Environmentally benign processes for the synthesis of N-formyl amino acid esters Tetrahedron Lett. 45, 7589, 2004.
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.
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.
S. Kotha, K. Mandal
Metathetic approach to napthoxepin and spirocyclic molecular frame works. Tetrahedron Lett. 45, 1391, 2004.
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.
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.
S. Kotha, M. Behera
Alkylation of isonitrile derivatives with 2,2′bis(bromomethyl)1,1′-biphenyl. Indian J. Chem. 43B, 922, 2004.
S. Kotha, M. Behera
Synthesis and modification of dibenzylglycine derivatives via the Suzuki-Miyaura cross-coupling reaction. J. Peptide. Res. 64, 72, 2004.
S. Kotha, A. Ghosh
The Diels–Alder approach for the synthesis of tetralin-based a-amino acid derivatives and their modification by Suzuki-Miyaura cross-coupling reaction. Synthesis 558, 2004.
S. Kotha, A. Ghosh
Synthesis of symmetrical and unsymmetrical 9, 10-diarylanthracene derivatives via bis Suzuki-Miyaura cross-coupling reaction Synthesis 549, 2004.
S. Kotha, E. Brahmachary
Synthesis and reactions of silicon containing cyclic a-amino acid derivatives. J. Organomet. Chem. 689, 158, 2004.
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.
L. Damodharan, V. Pattabhi, M. Behera, S. Kotha
Conformational switching caused by dibenzyl substation at Ca position. Acta. Cryst. C60, 527, 2004.
2003
S. Kotha, K. Lahiri
Application of the Suzuki Miyaura cross-coupling reaction for the modification of phenylalanine peptides. Biopolymers 69, 517, 2003.
S. Kotha, S. Halder
Synthesis of optically active benzocyclobutene and biphenylene based unusual a-amino acid derivatives. Indian J. Chem. 42B, 863 2003.
L. Damodhara, V. Pattabhi, R. Sivakumar, S. Kotha
Precursors to dodecahedrane Acta. Cryst. C59, 373, 2003.
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.
S. Kotha, E. Manivannan
Synthesis of spirocyclics via ring-closing metathesis reaction. Arkivoc, (iii) 67, 2003.
S. Kotha
The building block approach to unusual a-amino acid derivatives and peptides. Acc. Chem. Res. 342, 2003
2002
S. Kotha, K. Lahiri, D. Kashinath
Recent applications of the Suzuki-Miyaura cross-coupling reaction in organic synthesis. Tetrahedron 58, 9633, 2002.
S. Kotha, S. Halder, E. Brahmachary
Synthesis of highly functionalized phenylalanine derivatives via cross-enyne metathesis reactions. Tetrahedron 58, 9203, 2002.
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.
S. Kotha, E. Manivannan
Synthesis of functionalized cis-syn,cis-triquinanes. Indian J. Chem. 41B, 808, 2002.
S. Kotha, S. Halder, N. Sreenivasachary
Synthesis of dibenzocyclobutenyl glycines derivatives. Arkivoc, 21, 2002 (VII).
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.
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.
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.
S. Kotha, A. K. Ghosh
Synthesis of highly functionalized 9, 10-diarylantharacens via bis Suzuki Miyaura coupling reaction. Synlett 451, 2002.
S. Kotha, R. Sivakumar, L. Damodharan, V. Pattabhi
Synthesis of two new hexaquinanes: Advanced C20 precursors to dodecahedrane Tetrahedron Lett. 43, 4523, 2002.
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.
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.
S. Kotha, R. Stoodley
Enantioselective synthesis of (+)-4-demethoxy-1,4-dimethyldaunomycinone. Bioorg Med. Chem 10, 621, 2002.
S. Kotha, E. Brahmachary
Synthesis of constrained phenylalanine derivatives via a [2+2+2] cycloaddition strategy. Bioorg Med. Chem. 10, 2291, 2002.
2001
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.
S. Kotha, E. Brahmachary
First synthesis of indane-based a-amino acid derivatives with crown ether side chain. Indian J. Chem. 40B, 1, 2001.
L. Damodaran, K. Mohanraja, S. Kotha, S. Durani, V. Pattabhi
Conformational effects of Ca,a-dipropargylglycine as a constrained residue. Biopolymers 59, 330, 2001.
S. Kotha, N. Sreenivasachary, E. Brahmachary
Constrained phenylalanine derivatives by enyne metathesis and Diels–Alder reaction. Eur. J. Org. Chem. 787, 2001.
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.
S. Kotha, E. Manivannan
Synthesis of spiro-indanes by cycloaddition strategy. J. Chem. Soc. Perkin Trans. 1, 2543, 2001.
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.
S. Kotha, K. Lahiri, N. Sreenivasachary
Synthesis of useful benzocyclobutene building blocks via the Suzuki Miyaura coupling reaction. Synthesis 1932, 2001.
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
S. Kotha, A. Tafesh, K. Davenport, P. Ortiz.
Synthesis and carbonylation of arylacetylenes. Indian J. Chem. 40B, 1166, 2001.
S. Kotha, K. Lahiri.
A new approach for modification of phenylalanine peptides by Suzuki Miyaura coupling reaction. Bioorg Med. Chem. Lett. 11, 2887, 2001.
S. Kotha, N. Sreenivasachary, K. Mohanraja, S. Durani
Modification of constrained peptides by ring-closing metathesis reaction. Bioorg Med. Chem. Lett. 11, 1421, 2001
G. Mehta, S. Kotha
Recent chemistry of benzocyclobutenes. Tetrahedron 57, 625, 2001.
S. Kotha, N. Sreenivasachary.
Synthetic approaches to tetrahydroisoquinoline-3-carboxylic acid derivatives. J. Indian. Inst. Sci. 81, 277, 2001.
S. Kotha, N. Sreenivasachary
Catalytic metathesis in organic synthesis. Indian J. Chem. 40B, 763, 2001.
2000
S. Kotha, E. Brahmachary
Synthesis of indane-based unusual a-amino acid derivatives under phase-transfer catalysis conditions. J. Org. Chem. 65, 1359, 2000.
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.
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.
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.
S. Kotha, T. Ganesh, A. Ghosh
Diels-Alder approach to tetralin-based constrained a-amino acid derivatives. Bioorg Med. Chem. Lett. 10, 1755, 2000.
S. Kotha, S. Halder, E. Brahmachary, T. Ganesh
Synthesis of unusual a-amino acid derivatives via cross enyne metathesis reaction. Synlett 853, 2000.
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.
S. Kotha, K. Mohanraja, S. Durani
Constrained phenylalanine peptides via a [2+2+2]-cycloaddition strategy Chem. Commun. 1909, 2000.
1999
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.
S. Kotha, E. Manivannan, N. Sreenivasachary, T. Ganesh, A. C. Deb
Spiro-annulation via ring-closing metathesis reaction. Synlett 1618, 1999.
S. Kotha, K. Chakraborty, E. Brahmachary
A general and simple method for the synthesis of star-shaped thiophene derivatives. Synlett 1621, 1999.
S. Kotha, E. Manivannan, N. Sreenivasachary
Allylation of caged diketones via fragmentation methodology J. Chem. Soc. Perkin Trans. 1, 2845, 1999.
1998
S. Kotha, N. Sreenivasachary, E. Brahmachary
Synthesis of constrained a-amino acid derivatives via enyne-metathesis reaction. Tetrahedron Lett. 39, 2805, 1998.
S. Kotha, E. Brahmachary, N. Sreenivasachary.
Synthesis of constrained a-amino acid derivatives via Diels-Alder approach. Tetrahedron Lett. 39, 4095, 1998.
S. Kotha, N. Sreenivasachary
Synthesis of constrained a-amino acid derivatives via ring-closing olefin metathesis. Bioorg Med. Chem. Lett. 8, 257, 1998.
S. Kotha, A. Joseph, R. Sivakumar, E. Manivannan
Large scale synthesis of dimethyl 1, 3-acetonedicarboxylate. Indian J. Chem. 37B, 397, 1998.
1997
S. Kotha, E. Brahmachary
Synthesis of unusual a-amino acids via a [2+2+2] cycloaddition strategy. Tetrahedron Lett. 38, 3561, 1997.
S. Kotha, E. Brahmachary, R. Sivakumar, A. Joseph, N. Sreenivasachary
A simple route to cyclopentane annulation. Tetrahedron Lett. 38, 4497, 1997.
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.
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.
Before 1997
Publications from Hoechst
S. Kotha
Opportunities in asymmetric synthsis: An industrial prospect. Tetrahedron 50, 3639, 1994.
A. Tafesh, S. Kotha, K. Davenport.
Preparation of optically active α-arylpropionic acids. U. S. Patent 5, 223, 640, 1993
Publications from Cornell
S. Kotha, V. Bindra, A. Kuki
Synthesis and reactions of 3, 4-dihydro-2H-1, 4-benzoxazine derivatives. Heterocycles 5, 1994.
S. Kotha, A. Kuki
Synthesis of new rigid quinone-amino acid and Diels–Alder extension
to higher quinones. Chem. Lett. 299, 1993.
S. Kotha, A. Kuki
A simple method for the synthesis of cyclic α-amino acids. Tetrahedron Lett. 33, 1565, 1992
S. Kotha, D. Anglos, A. Kuki
Friedel‒Crafts approach to electron deficient cyclic α-amino acids. Tetrahedron Lett. 33, 1569, 1992.
S. Kotha, A. Kuki
A new synthetic approach to unusually electron rich α-amino acids. J. Chem. Soc. Chem. Commun. 404, 1992.
Publications from Wisconsin
S. Kotha, J. M. Cook
Improved method for bisallylation of cis-bicyclo(3.3.0)octane-3,7-dione via the
Claisen rearrangement. Org. Prep. Proce. Int. 22, 630, 1990.
S. Kotha, S. Hollinshead, D. Grubisha, F. Laib, D. Bennett, J. M. Cook
Synthetic approach to pentaleno[2,1-b:5,4-b]diindoles. J. Org. Chem. 55, 3858, 1990.
A. K. Gupta, S. Kotha, B.Opansky, J. M. Cook
A general approach to the synthesis of polyquinanes via the Weiss reaction.
10. Transient formation of cis-tetracyclo[7.2.1.0.4,11.0.6,10]dodeca-3,5,7,9-
tetraene and an approach towards 10,11-dimethyl-cis- tetracyclo[7.2.1. 4,11.0.6,10]
dodeca 3,5,7,9-tetraene. J. Org. Chem. 55, 4480, 1990.
G. Lannoye, S. Kotha, S. Wehrli, J. M. Cook
General approach to the synthesis of polyqunianes via the Weiss reaction.
6. Progress towards the synthesis of dicyclopentapentalenes. J. Org. Chem. 53, 2327, 1988.
S. Kotha, G. Kubiak, G. Lannoye, J. M. Cook
General approach to the synthesis of polyquinanes, 9. Monofunctionalization
and alteration of the symmetry of the cis-bicyclo[3.3.0]octane-3,7-dione unit. J. Org. Chem. 53, 5173, 1988.
Publications from Hyderabad
G. Mehta, A. Srikrishna, S. Kotha, K. Raja Reddy, K. A. Acharya, V. G. Puranik, S. S. Tavale, T. N. Guru Rao.
Novel polyquinanes from caged hexacyclic [4.4.2] propellane system. J. Org. Chem. 52, 457, 1987
G. Mehta, S. Kotha
Reductive carbon-carbon bond cleavage in caged systems. A new general
synthesis of linearly fused cis-syn-cis triquinanes. J. Org. Chem. 50, 5537, 1985.
G. Mehta, S. Kotha, A. P. Marchand, R. Kaya
Studies on the flash vacuum pyrolysis and anomalous course of alkali metal
promoted reductions of 8-methylenepentacyclo[5.4.0.2,6.0.3,10 05,9]
undecan-11-one. J. Org. Chem. 49, 3848, 1984.
G. Mehta, S. Kotha
A general synthetic approach to cis-syn-cis triquinanes via reductive
carbon-carbon bond cleavage in polycyclic frames: Strategy for bis-cyclopentane
annulation of 1,3-cyclopentadiene. Tetrahedron Lett. 24, 809, 1983.
M. M. Bhadhade, K. Venkatesan, G. Mehta and S. Kotha
Structure of pentacyclo[7.4.02,6.06,15.011,14]pentadeca-4-ene-7,13-dienone,
a novel pentacyclic C15-quinane system. Acta. Cryst. B. 38, 1357, 1982.
G. Mehta, S. Kotha
Novel carbonium ion mediated rearrangements of (homocunenone) (Pentacyclo[4.3.0.02,4.03,8.05,7]nonan-9-one). Indian J. Chem. 21B, 981, 1982.
G. Mehta, S. Kotha, M. M. Bhadhade, K. Venkatesan
Novel rearrangement to a pentacyclopentanoid (polyquinane) system. J. Chem. Soc. Chem. Commun. 755, 1981.
G. Mehta, S. Kotha, S. C. Suri, T. S. Cameron and C. Chan
Cubanes uncaged: Novel carbonium ion rearrangements of pentacyclo-[4.3.0.02,5.03,8.04,7]nonan-9-ones (homocubanones) to bicycle[3.2.1] octa-2,6-diene and tetracyclo[3.3.0.0. 02,6.03,8]octane ring systems. J. Chem. Soc. Chem. Commun. 650, 1980.
G. Mehta, V. Singh, S. Kotha
On the fluxional behaviour of polycyclic [4.4.2]propella-2,4-diene. Tetrahedron Lett. 21, 1369, 1980.