A photoredox-assisted reductiveacyl cross-coupling reaction of two different carboxylic acid esters was developed for ketone synthesis. The reaction proceeded smoothly under mild conditions using Hantzsch ester (HE) as an organic reductant, with high chemoselectivity and functional group compatibility. A large range of aryl and 1°, 2°, 3°-acyl electrophiles, and 1°, 2°, 3°-alkyl radical precursors
Nickel-Catalyzed Three-Component Alkylacylation of Alkenes Enabled by a Photoactive Electron Donor–Acceptor Complex
作者:Xiaoxiang Xi、Yukun Chen、Weiming Yuan
DOI:10.1021/acs.orglett.2c01237
日期:2022.6.10
An electron donor–acceptor complex-enabled, nickel-catalyzed three-component net-reductive 1,2-alkylacylation of alkenes is developed. This conjunctive reductive acyl cross-coupling process obviates the use of an exogenous photocatalyst and a stoichiometric metal-based reductant, affording various synthetically useful 1,3-dicarbonylcompounds in good yields with a broad substrate scope and excellent