Items where Author is "Kumar, U. K. Syam"

Article

Sundaram, G. S. M. ; Venkatesh, C. ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (2004) A concise formal synthesis of alkaloid cryptotackiene and substituted 6H-indolo[2,3-b]quinolines Journal of Organic Chemistry, 69 (17). pp. 5760-5762. ISSN 0022-3263

Mahata, Pranab K. ; Kumar, U. K. Syam ; Sriram, V. ; Ila, H. ; Junjappa, H. (2003) 1-Bis(methoxy)-4-bis(methylthio)-3-buten-2-one: useful three carbon synthon for synthesis of five and six membered heterocycles with masked (or unmasked) aldehyde functionality Tetrahedron, 59 (15). pp. 2631-2639. ISSN 0040-4020

Mahata, P. K. ; Venkatesh, C. ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (2003) Reaction of α-oxoketene-N,S-arylaminoacetals with vilsmeier reagents: an efficient route to highly functionalized quinolines and their benzo/hetero-fused analogue Journal of Organic Chemistry, 68 (10). pp. 3966-3975. ISSN 0022-3263

Nandi, Sukumar ; Kumar, U. K. Syam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2002) Domino carbocationic cyclization of functionalized cyclopropyl ketones: facile one-pot access to peri- and angularly fused polycyclic aromatic and heteroaromatic frameworks Journal of Organic Chemistry, 67 (14). pp. 4916-4923. ISSN 0022-3263

Suresh, J. R. ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (2001) Aromatic and heteroaromatic annelation studies on 3-[bis(methylthio)methylene]-1-methyloxindole: synthesis of carbazoles and an efficient route to pyrido[2,3-b]indoles Tetrahedron, 57 (4). pp. 781-790. ISSN 0040-4020

Kumar, U. K. Syam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2001) A new route to spiropyrrolidinyl-oxindole alkaloids via iodide ion induced rearrangement of [(N-aziridinomethylthio)methylene]-2-oxindoles Organic Letters, 3 (26). pp. 4193-4196. ISSN 1523-7060

Rao, M. V. Basaveswara ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (1999) Synthesis and reactions of 2-bis(methylthio)methylene-1-methyl-3-oxoindole: a facile access to benzo- and heterocyclo-fused carbazoles and indoles Tetrahedron, 55 (38). pp. 11563-11578. ISSN 0040-4020

Kumar, U. K. Syam ; Patra, Pranab K. ; Ila, H. ; Junjappa, H. (1998) Benzoannelation of 2-methylindole via 1-N-carboxy-2-methylindole dianion: a direct regiospecific route to substituted and annelated carbazoles Tetrahedron Letters, 39 (14). pp. 2029-2032. ISSN 0040-4039