Abnormal-NHC-Supported Nickel Catalysts for Hydroheteroarylation of Vinylarenes
作者:Gonela Vijaykumar、Anex Jose、Pavan K. Vardhanapu、Sreejyothi P、Swadhin K. Mandal
DOI:10.1021/acs.organomet.7b00628
日期:2017.12.26
Herein we report the hydroheteroarylation of vinylarenes with benzoxazole in the presence of a free abnormal N-heterocyclic carbene and Ni(COD)2, resulting in 1,1-diarylethane products exclusively. In an attempt to understand the mechanism of this catalytic reaction, two abnormal-NHC (aNHC)-coordinated Ni(II) cyclooctenyl complexes were isolated and their solid-state structures were determined by X-ray