Zobrazeno 1 - 10
of 10
pro vyhledávání: '"N. S. V. M. Rao Mangina"'
Publikováno v:
Organic & Biomolecular Chemistry. 17:2809-2817
An efficient method was developed for the synthesis of substituted aryl-fused pyrazolooxazepines from ortho-O-propargyl aryl pyrazoles by gold catalysis. In this organic transformation a new C-N bond was formed regioselectively via 7-exo-dig cyclizat
Autor:
Galla V. Karunakar, Mukesh Sharma, Biraj Das, Kusum K. Bania, N. S. V. M. Rao Mangina, Anil Hazarika
Publikováno v:
Microporous and Mesoporous Materials. 272:31-39
Hierarchical structure in microporous zeolite-Y was introduced to overcome the diffusional restriction for direct encapsulation of chiral cobalt (II) Schiff base complexes. Mesopores with cylindrical channels of ∼5 nm dimensions were formed on post
Autor:
Galla V. Karunakar, Kommuru Goutham, B. Sridhar, Veerabhushanam Kadiyala, Ravinder Guduru, N. S. V. M. Rao Mangina
Publikováno v:
Organic Letters. 19:282-285
An efficient gold-catalyzed synthesis of substituted 3-methylene-3,4-dihydrobenzo[b]oxepinones from ortho-O-propargyl substituted aryl enaminones has been achieved. In this transformation a new C-C bond formation occurred regioselectively via 7-exo-d
Publikováno v:
Organicbiomolecular chemistry. 16(12)
The reaction of arynes and secondary allylamines furnished ortho-allyl-substituted N-arylanilines via an aza-Claisen rearrangement. In this transformation, the sequential formation of C–C and C–N bonds occurred by involving two aryne molecules un
Gold-catalysed cyclisation of N-propargylic β-enaminones to form 3-methylene-1-pyrroline derivatives
Autor:
Kommuru Goutham, N. S. V. M. Rao Mangina, Galla V. Karunakar, Pallepogu Raghavaiah, Surisetti Suresh
Publikováno v:
Org. Biomol. Chem.. 12:2869-2873
A gold(I) catalysed reaction between N-propargylic β-enaminones and arynes was developed to access 3-methylene-1-pyrrolines. The title compounds were obtained in 57-78% yields. This reaction is useful for the generation of substituted 1-pyrrolines e
Publikováno v:
ChemInform. 47
The reaction is proposed to proceed via aldehyde-assisted, gold-catalyzed oxidation/auration of the alkyne moiety, protodeauration of the organo-gold intermediate and cyclocondensation.
Publikováno v:
Organicbiomolecular chemistry. 14(14)
An efficient gold-catalyzed intramolecular cyclization of ortho-O-propargyl-1-one substituted arylaldehydes has been achieved for the generation of substituted aroylbenzo[b]oxepin-3-one derivatives in moderate to good yields. This synthetic transform
Autor:
N. S. V. M. Rao Mangina, Surisetti Suresh, Dalovai Purnachander, Galla V. Karunakar, Balasubramanian Sridhar, Vemu Nagaraju
Publikováno v:
ChemInform. 46
Synthesis of substituted 1,2-dihydropyridinones is described in a one pot reaction of β-enaminones and acetylene dicarboxylates where new C–C and C–N bonds were formed. The title compounds were obtained in moderate to good yields.
Autor:
Galla V. Karunakar, Surisetti Suresh, N. S. V. M. Rao Mangina, Dalovai Purnachander, Vemu Nagaraju, Balasubramanian Sridhar
Publikováno v:
Organicbiomolecular chemistry. 13(10)
Synthesis of substituted 1,2-dihydropyridinones is described in a one pot reaction of β-enaminones and acetylene dicarboxylates where new C–C and C–N bonds were formed. The title compounds were obtained in moderate to good yields.
Autor:
Pallepogu Raghavaiah, N. S. V. M. Rao Mangina, Kommuru Goutham, Galla V. Karunakar, Surisetti Suresh
Publikováno v:
ChemInform. 45