N-fluorobenzenesulfonimide (NFSI) and its analogues as both nitrogen source and oxidant was successfully disclosed. A variety of alkenes, including aliphatic alkenes, styrenes, α, β-unsaturated esters, amides, acids, as well as enones, were all compatible to provide desired amination products. Mechanistic experiments suggest that the reaction underwent a metal-hydride-mediated hydrogen atom transfer (HAT) with alkene
Copper-Catalyzed Regioselective<i>ortho</i>CH Cyanation of Vinylarenes
作者:Yang Yang、Stephen L. Buchwald
DOI:10.1002/anie.201402449
日期:2014.8.11
A copper‐based catalytic technique for the regioselective ortho CH cyanation of vinylarenes has been developed. This method provides an effective means for the selective functionalization of vinylarene derivatives. A copper‐catalyzed cyanative dearomatization mechanism is proposed to account for the regiochemical course of this reaction.
A highly efficient Co-catalyzed enantioselective alkylation of alkenes with indoles, thiophenes and electron rich arenes has been developed. This is the first CoH-catalyzed asymmetric hydrofunctionalization using carbon nucleophiles via hydrogen atom transfer.