biblio

Export 79 results:
Filters: Author is Chavan, Subhash P.  [Clear All Filters]
2005
S. P. Chavan, Pasupathy, K., Shengule, S., Shinde, V., and Anand, R., Catalytic transesterification of beta-ketoesters with zeolite H-FER under solvent free conditions, Arkivoc, vol. 13, pp. 162-168, 2005.
S. P. Chavan, Chittiboyina, A. G., Ravindranathan, T., Kamat, S. K., and Kalkote, U. R., Diastereoselective amidoalkylation of (3S,7aR)-6-benzyl-7-hydroxy-3-phenyltetra-hydro-5H-imidazo[1,5-c][1, 3]thiazol-5-one : a short and highly efficient synthesis of (+)-biotin, Journal of Organic Chemistry, vol. 70, no. 5, pp. 1901-1903, 2005.
S. P. Chavan, Praveen, C., Sharma, P., and Kalkote, U. R., Efficient stereoselective synthesis of (2S,4S,5R)-(-)- and (2R,4R,5S)-(+)-bulgecinine, Tetrahedron Letters, vol. 46, no. 3, pp. 439-441, 2005.
S. P. Chavan, Kale, R. R., and Pasupathy, K., Facile regioselective decomposition of tosylhydrazones: an application towards the synthesis of alpha-lipoic acid, Synlett, no. 7, pp. 1129-1132, 2005.
S. P. Chavan, Thakkar, M., Kharul, R. K., Pathak, A. B., Bhosekar, G. V., and Bhadbhade, M. M., First enantiospecific synthesis of (+)-beta-herbertenol, Tetrahedron, vol. 61, no. 15, pp. 3873-3879, 2005.
S. P. Chavan, Kharul, R. K., Kamat, S. K., Kalkote, U. R., and Kale, R. R., Simple, concise, stereocontrolled synthesis of (8E,10Z)-pentadecadien-1-ol acetate, Synthetic Communications, vol. 35, no. 7, pp. 987-994, 2005.
S. P. Chavan, Shivsankar, K., and Pasupathy, K., Simplistic expedient and practical synthesis of (+/-)-alpha-lipoic acid, Synthesis-Stuttgart, no. 8, pp. 1297-1300, 2005.
S. P. Chavan and Praveen, C., Stereoselective synthesis of (-)-microcarpalide, Tetrahedron Letters, vol. 46, no. 11, pp. 1939-1941, 2005.
S. P. Chavan and Venkatraman, M. S., Synthesis of (+)-camptothecin, Arkivoc, vol. 2005, no. 3, pp. 165-169, 2005.
S. P. Chavan, Chittiboyina, A. G., Ramakrishna, G., Tejwani, R. B., Ravindranathan, T., Kamat, S. K., Rai, B., Sivadasan, L., Balakrishnan, K., Ramalingam, S., and Deshpande, V. H., Unusual stereochemical outcome of radical cyclization: synthesis of (+)-biotin, Tetrahedron, vol. 61, no. 39, pp. 9273-9280, 2005.
2007
S. P. Chavan, Khobragade, D. A., Pathak, A. B., and Kalkote, U. R., Convenient formal synthesis of (+/-)-paroxetine, Synthetic Communications, vol. 37, no. 18, pp. 3143-3149, 2007.
S. P. Chavan, Dhawane, A. N., and Kalkote, U. R., Efficient and practical total synthesis of (+/-)-alpha-cuparenone, Synthesis-Stuttgart , no. 24, pp. 3827-3830, 2007.
S. P. Chavan, Dhawane, A. N., and Kalkote, U. R., Facile total synthesis of (+/-)-alpha-cuparenone employing diallylation and RCM as key steps, Tetrahedron Letter, vol. 48, no. 6, pp. 965-966, 2007.
S. P. Chavan, Thakkar, M., and Kalkote, U. R., First enantiospecific synthesis of (-)-heritol: absolute configuration determination, Tetrahedron Letters, vol. 48, no. 4, pp. 643-646, 2007.
S. P. Chavan, Ethiraj, K. S., and Dantale, S. W., MgBr2-mediated ionic Diels-Alder reaction of acetals of alpha,beta-unsaturated aldehydes and ketones with 1,3-dienes, Synthetic Communications, vol. 37, no. 14, pp. 2337-2343, 2007.
S. P. Chavan, Sharma, P., Sivappa, R., and Kalkote, U. R., Practical and facile approach towards indole alkaloids: (-)-mitralactonine, Synlett, no. 1, pp. 79-82, 2007.
S. P. Chavan, Pathak, A. B., and Kalkote, U. R., Practical formal synthesis of camptothecin, Tetrahedron Letter, vol. 48, no. 37, pp. 6561-6563, 2007.
S. P. Chavan, Khobragade, D. A., Thakkar, M., and Kalkote, U. R., Practical synthesis of (+/-)-venlafaxine, Synthetic Communications, vol. 37, no. 22-24, pp. 3901-3906, 2007.
S. P. Chavan, Pathak, A. B., Pandey, A., and Kalkote, U. R., Short and efficient synthesis of rubrolide E, Synthetic Communications, vol. 37, no. 22-24, pp. 4253-4263, 2007.
S. P. Chavan, Pathak, A. B., and Kalkote, U. R., Total synthesis of (+)-camptothecin via an intramolecular palladium-catalyzed cyclization strategy, Synlett, no. 17, pp. 2635-2638, 2007.
S. P. Chavan, Pathak, A. B., Dhawane, A. N., and Kalkote, U. R., Total synthesis of pulchellalactam via an RCM strategy, Synthetic Communications, vol. 37, no. 7-9, pp. 1503-1510, 2007.
2011
S. P. Chavan, Dumare, N. B., Harale, K. R., and Kalkote, U. R., Asymmetric total synthesis of (2S,3S)-3-hydroxypipecolic acid, Tetrahedron Letters, vol. 52, no. 3, pp. 404-406, 2011.
S. P. Chavan, Harale, K. R., Dumare, N. B., and Kalkote, U. R., Convenient formal synthesis of (2S,3S)-3-hydroxy pipecolic acid, Tetrahedron-Asymmetry, vol. 22, no. 5, pp. 587-590, 2011.
S. P. Panchgalle, Kunte, S. S., Chavan, S. P., and Kalkote, U. R., Exploration of L-proline-catalyzed -aminoxylation of aldehyde to (S)-guaifenesin-related drug molecules, Synthetic Communications, vol. 41, no. 13, p. PII 937137930, 2011.
H. B. Borate, Sawargave, S. P., Chavan, S. P., Chandavarkar, M. A., Iyer, R., Tawte, A., Rao, D., Deore, J. V., Kudale, A. S., Mahajan, P. S., and Kangire, G. S., Novel hybrids of fluconazole and furanones: design, synthesis and antifungal activity, Bioorganic & Medicinal Chemistry Letters, vol. 21, no. 16, pp. 4873-4878, 2011.
S. P. Sawargave, Kudale, A. S., Deore, J. V., Bhosale, D. S., Divse, J. M., Chavan, S. P., and Borate, H. B., One-step synthesis of 4-alkyl-3-aryl-2,6-dicyanoanilines and their use in the synthesis of highly functionalized 2,3,5,6,7-and 2,3,4,5,7-substituted indoles, Tetrahedron Letters, vol. 52, no. 42, pp. 5491-5493, 2011.
2014
S. P. Chavan, Khairnar, L. B., Chavan, P. N., Dumare, N. B., Kalbhor, D. B., and Gonnade, R. G., Chiron approach to formal synthesis of both antipodes of cis 3-hydroxypipecolic acid, Tetrahedron Letters, vol. 55, no. 47, pp. 6423-6426, 2014.
S. P. Chavan, Khairnar, L. B., and Chavan, P. N., Efficient and mild method for preparation of allylic amines from aziridine-2-alcohols using PPh3/I-2/imidazole, Tetrahedron Letters, vol. 55, no. 43, pp. 5905-5907, 2014.
S. P. Chavan, Chavan, P. N., Lasonkar, P. B., Khairnar, L. B., and Kadam, A. L., Facile and convenient synthesis of (+/-)-Biotin via MgCl2/Et3N-mediated C-C coupling and mitsunobu reaction, Synlett, vol. 25, no. 20, pp. 2879-2882, 2014.
S. P. Chavan, Dumare, N. B., and Pawar, K. P., Novel, concise and efficient protocol for non-natural piperidine compounds, RSC Advances, vol. 4, no. 62, pp. 32594-32598, 2014.
S. P. Chavan, Pawar, K. P., and Garai, S., Protecting group free and scalable approach towards total synthesis of (-)-venlafaxine, RSC Advances, vol. 4, no. 28, pp. 14468-14470, 2014.
S. P. Chavan, Khairnar, L. B., Chavan, P. N., and Kalbhor, D. B., Short enantioselective total synthesis of (R)- and (S)-pipecolic acid, Tetrahedron-Asymmetry, vol. 25, no. 16-17, pp. 1246-1251, 2014.
S. P. Chavan, Chavan, P. N., and Gonnade, R. G., Stereospecific synthetic approach towards tamiflu using the ramberg-backlund reaction from cysteine hydrochloride, RSC Advances, vol. 4, no. 107, pp. 62281-62284, 2014.
S. P. Chavan, Dumare, N. B., and Pawar, K. P., Total syntheses of D-allo-1-deoxynojirimycin and L-talo-1-deoxynojirimycin via reductive cyclization, RSC Advances, vol. 4, no. 77, pp. 40852-40858, 2014.
S. R. Bavikar, Lasonkar, T. P., Chavan, S. P., and Borate, H. B., Unusual, selective, reductive, deoxygenation of cyclopentenone alcohols, Tetrahedron Letters, vol. 55, no. 38, pp. 5241-5243, 2014.
2015
S. P. Chavan, Pawar, K. P., Praveen, C., and Patil, N. B., Chirality induction and chiron approaches to enantioselective total synthesis of alpha-lipoic acid, Tetrahedron, vol. 71, no. 24, pp. 4213-4218, 2015.
S. P. Chavan, Khairnar, L. B., Pawar, K. P., Chavan, P. N., and Kawale, S. A., Enantioselective syntheses of (R)-pipecolic acid, (2R,3R)-3-hydroxypipecolic acid, beta-(+)-conhydrine and (-)-swainsonine using an aziridine derived common chiral synthon, RSC Advances, vol. 5, no. 62, pp. 50580-50590, 2015.
S. P. Chavan, Dumare, N. B., and Pawar, K. P., Formal syntheses of (2R,3R)-3-hydroxy pipecolic acid and (2R,3S)-3-hydroxy pipecolic acid from L-ascorbic acid, Tetrahedron Letters, vol. 56, no. 6, pp. 805-807, 2015.
S. P. Chavan, Pathak, A. B., and Pawar, K. P., Synthesis of 3-ethyl-4-metyl-1h,5-dihydro-2h-pyrrol-2-one by novel palladium(ii)-catalyzed cyclization and ring-closing metathesis, Synthesis-Stuttgart, vol. 47, no. 7, pp. 955-960, 2015.
A. N. Purude, Pawar, K. P., Patil, N. B., Kalkote, U. R., and Chavan, S. P., Total synthesis of (R)-lipoic acid and (S)-lipoic acid via an Mn (III)-salen-catalyzed oxidative kinetic resolution, Tetrahedron-Asymmetry, vol. 26, no. 5-6, pp. 281-287, 2015.
2021
S. P. Chavan, Kawale, S. A., Patil, N. B., and Kalbhor, D. B., Application of allylic amine formation from aziridine-2-ol under appel reaction condition: synthesis of N-(tert-butoxycarbonyl)-D-vinyl glycine methyl ester, Tetrahedron Letters, vol. 73, p. 153119, 2021.
S. P. Chavan, Kalbhor, D. B., and Gonnade, R. G., Divergent approach to the synthesis of (-)-balanol heterocycle and cis-3-hydroxypipecolic acid based on chiral 2-aminoalkanol equivalent, Tetrahedron, vol. 80, p. 131773, 2021.
S. P. Chavan, Kawale, S. A., Pisal, M. M., Kadam, A. L., and Gonnade, R. G., Formal synthesis of (-)-quinagolide: diastereoselective ring expansion via a bicyclic aziridinium ion strategy to access the octahydrobenzo[g]quinoline architecture, Journal of Organic Chemistry, vol. 86, no. 14, pp. 9344-9352, 2021.
N. B. Patil, Atapalkar, R. S., Chavan, S. P., and Kulkarni, A. A., Multi-step synthesis of miltefosine: integration of flow chemistry with continuous mechanochemistry, Chemistry-A European Journal, vol. 27, no. 70, pp. 17695-17699, 2021.
M. M. Pisal, Annadate, R. A., Athalye, M. C., Kumar, D., Chavan, S. P., Sarkar, D., and Borate, H. B., Synthesis and cell imaging applications of fluorescent mono/di/tri-heterocyclyl-2,6-dicyanoanilines (vol 27, pg 979, 2017), Bioorganic & Medicinal Chemistry Letters, vol. 32, p. 127737, 2021.