Items where Author is "Ghosh, Sukumar"

Article

Ghosh, Sukumar ; Ghosh, Ajit K. ; Ghatak, Usha Ranjan (1992) An expeditious stereoselective total synthesis of (±)-podocarpa-2,8,11.13-tetraene and 3-oxygenated (±)-podocarpa-8,11,13-trienes by acid-catalyzed cyclialkylation route Synthetic Communications, 22 (4). pp. 553-565. ISSN 0039-7911

Ghosh, Sukumar ; Ghatak, Usha Ranjan (1992) Influence of electron donating aromatic substituents on the ruthenium tetroxide-catalysed oxidation of (±)-podocarpa-8,11,13-trienes Tetrahedron, 48 (35). pp. 7289-7296. ISSN 0040-4020

Ghosh, Sukumar ; Banik, Bimal K. ; Ghatak, Usha Ranjan (1991) Influence of electron donating aromatic substituents on the stereochemistry of the products in cycloalkylations of 2-(2-arylethyl)-3,3-dimethyl-1-methylenecyclohexane and related substrates: mechanisms of aromatic cycloalkylations Journal of the Chemical Society, Perkin Transactions 1 (12). pp. 3189-3193. ISSN 0300-922X

Ghosh, Sukumar ; Banik, Bimal K. ; Ghatak, Usha Ranjan (1991) An expeditious synthesis of 1,2,3,4-tetrahydro-1,1- dimethylphenanthrenes Journal of the Chemical Society, Perkin Transactions 1 (12). pp. 3195-3197. ISSN 0300-922X

Pal, Sitaram ; Ghosh, Sukumar ; Banik, Bimal K. ; Alam, Shaikh Khairul ; Ghatak, Usha Ranjan (1990) Synthesis of (±)-2-methoxy-9a-carbamorphinan and (±)-2-methoxy-9a-carba-14α-morphinan: acid catalyzed cyclizations of 1-m̲-methoxybenzyl-4, 4a,5,6,7,8-hexahydronaphthalen-2(3H)-one and 1-m̲-methoxy benzyloctalins Synthetic Communications, 20 (14). pp. 2203-2216. ISSN 0039-7911

Banik, Bimal K. ; Ghosh, Sukumar ; Ghatak, Usha Ranjan (1988) Influence of methoxy-and methyl-aromatic substituents on stereochemistry of the products in the acid-catalyzed cyclization of 2-(2-arylethyl)-1,3,3-trimethylcyclohexanols: stereocontrolled total synthesis of (±)-nimbidiol and (±)-nimbiol Tetrahedron, 44 (22). pp. 6947-6955. ISSN 0040-4020