Nickel-Catalyzed Three-Component Reductive Alkylacylation of Electron-Deficient Activated Alkenes
作者:Lin Wang、Chuan Wang
DOI:10.1021/acs.orglett.0c03210
日期:2020.11.20
alkylacylation of electron-deficient activated alkenes with tertiary alkyl bromides and acid anhydrides. This method enables the efficient preparation of a variety of ketones with broad substrate scope and high functionality tolerance starting from simple precursors. On the basis of the preliminary mechanistic investigations, a catalytic cycle involving the synergistic interaction of nickel, zinc, and MgCl2
Enantioselective reductive allylic alkylation enabled by dual photoredox/palladium catalysis
作者:Sheng Tang、Hong-Hao Zhang、Shouyun Yu
DOI:10.1039/d2cc06705f
日期:——
A dual photoredox/palladium catalyzed regio- and enantioselective reductive cross-coupling of allylic acetates with tertiary/secondary alkyl bromides has been achieved, and Hantzsch ester is used as a homogeneous organic reductant. This straightforward protocol enables the stereoselective construction of C(sp3)–C(sp3) bonds under mild reaction conditions. Mechanistic studies suggest that this reaction