Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Madavi S. Prasad"'
Autor:
Biplob Borah, Mihir Patat, Vipin Singh, Murugesan Sivaprakash, Madavi S. Prasad, L. Raju Chowhan
Publikováno v:
Organic & Biomolecular Chemistry. 21:1518-1530
Highly efficient synthesis of functionalized 1,4-dihydropyridines, spiro[indoline-3,4′-pyridines], and spiro[indeno[1,2-b]quinoxaline-11,4′-pyridines] using rose Bengal photocatalyst under blue LED in an aqueous medium at rt has been disclosed.
Autor:
Biplob Borah, Naveena S. Veeranagaiah, Samrita Sharma, Mihir Patat, Madavi S. Prasad, Raghavaiah Pallepogu, L. Raju Chowhan
Publikováno v:
RSC Advances. 13:7063-7075
Recent updates on the synthesis of CF3-containing spirocyclic-oxindoles by employing N-2,2,2-trifluoroethylisatin ketimines are described in this review article.
Publikováno v:
Organic & Biomolecular Chemistry. 21:339-344
Asymmetric synthesis of fluoro-perhydroepoxyethanoindole was achieved through a sequential aminocatalytic [4 + 2]-addition/reduction/fluoroannulation reactions.
Publikováno v:
Organic & Biomolecular Chemistry. 21:945-949
The first report on trienamine-catalyzed remote olefin E/Z isomerization followed by a [4 + 2]-cycloaddition reaction is disclosed.
Publikováno v:
Chemistry – An Asian Journal.
Publikováno v:
Organicbiomolecular chemistry.
Herein, for the first time, we report the asymmetric synthesis of an unexpected stereoisomer of spirohexahydroindole
Autor:
Madavi S. Prasad, Sankar Bharani, Sivaprakash Murugesan, Prabha Vadivelu, Durairajan Siva Sundara Kumar, L Raju Chowhan
Publikováno v:
Organic & Biomolecular Chemistry.
The first report on using N-2,2,2-trifluoroethylisatinketimine as 1,2-dipolarophile for [3+2]-addition and the first asymmetric synthesis of N-2,2,2-trifluoroethylspirothiazolidine oxindoles is described. The organocatalyzed asymmetric [3+2]-addition
Autor:
Madavi S. Prasad, Sankar Bharani, Syed Mastan Sharief, Mudavath Ravi, Murugesan Sivaprakash, Biplob Borah, L. Raju Chowhan
Publikováno v:
RSC Advances. 12:34941-34945
A highly chemo- and regioselective construction of spiropyrrolidine oxindole is devised via DABCO catalysed [3 + 2] cycloaddition reaction.
Publikováno v:
Organicbiomolecular chemistry. 20(32)
For the first time, [4 + 2]-annulation of in situ generated trienamine from 2-(E)-benzylidine-3-pyrrolidinyl acraldehyde with pyrazolone olefins has been developed to give hexahydrospiroindole pyrazolones with high chemo- and stereoselectivity.