Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sayan Shee"'
Publikováno v:
Organic Letters. 25:220-225
The enantioselective synthesis of functionalized pyrazoloquinolin-3-ones via N-heterocyclic carbene-catalyzed cascade reaction of α-bromoenals with 2-aminoaryl
Publikováno v:
Organic Letters. 24:8848-8853
The N-heterocyclic carbene (NHC)-organocatalyzed [3 + 3] annulation of 2-bromoenals with β-oxodithioesters resulting in the enantioselective synthesis of dihydrothiopyranones is presented. The chiral α,β-unsaturated acylazoliums generated from 2-b
Publikováno v:
Asymmetric Organocatalysis. :497-537
Publikováno v:
Organic Letters. 24:6066-6071
N-Heterocyclic carbene (NHC)-catalyzed umpolung of cyclopent-4-ene-1,3-diones that proceeds via the generation of nucleophilic deoxy-Breslow intermediates is presented. The carbene generated from a commercially available thiazolium salt catalyzed the
Autor:
Kuruva Balanna, Soumen Barik, Shilpa Barik, Sayan Shee, Niket Manoj, Rajesh Gonnade, Akkattu Biju
Although the atroposelective synthesis of biaryls and related compounds bearing axially chiral C-C bonds are well-known, the synthesis of axially chiral C-N bond-containing compounds are relatively less explored, and the construction of axially chira
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d98f05eff3c877b0db1dc3a9fe488b3d
https://doi.org/10.26434/chemrxiv-2023-7zxsn
https://doi.org/10.26434/chemrxiv-2023-7zxsn
Publikováno v:
Chemical Science. 13:11513-11518
NHC-Lewis acid cooperative catalyzed dynamic kinetic resolution (DKR) of transiently generated γ,γ-disubstituted indole 2-carboxaldehydes leading to the enantioselective synthesis of tetracyclic ε-lactones is reported.
Publikováno v:
Chemical science. 13(39)
The ubiquity of ε-lactones in various biologically active compounds inspired the development of efficient and enantioselective routes to these target compounds. Described herein is the enantioselective synthesis of indole-fused ε-lactones by the N-
Autor:
Sayan Shee, Akkattu T. Biju, Garima Jindal, Subrata Mukherjee, Soumen Barik, Rajesh G. Gonnade, Soumik Das
Publikováno v:
Angewandte Chemie. 133:12372-12376
Although the construction of axially chiral C-C bonds leading to the atroposelective synthesis of biaryls and allied compounds are well-known, the related synthesis of compounds bearing axially chiral C-N bonds are relatively rare. Described herein i
Publikováno v:
Chemical Communications. 57:7794-7797
NHC-catalyzed cascade reaction of enals with suitably substituted β-(hetero)aryl enones allowing the enantioselective synthesis of tetra-substituted tetralines and tetrahydro indolizines is presented. The catalytically generated chiral α,β-unsatur
Publikováno v:
Organic letters. 24(14)
N-Heterocyclic carbene-catalyzed formal [4+2] benzannulation of enals with suitably substituted pyrimidine-2,4-diones allowing the mild and facile synthesis of functionalized quinazoline-2,4-diones is presented. This oxidative transformation proceeds