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
One‐Step Access to Heteroatom‐Functionalized Imidazol(in)ium Salts
作者:Dmitry V. Pasyukov、Maxim A. Shevchenko、Konstantin E. Shepelenko、Oleg V. Khazipov、Julia V. Burykina、Evgeniy G. Gordeev、Mikhail E. Minyaev、Victor M. Chernyshev、Valentine P. Ananikov
DOI:10.1002/anie.202116131
日期:2022.2.21
and imidazolinium salts in one step via cascade reactions of easily available 1,4-diaza-1,3-butadienes with trialkyl orthoformates and heteroatomic nucleophiles was developed. Feasibility of the new imidazol(in)ium salts for direct metallation to give M/NHC complexes (M=Pd, Ni, Cu, Ag, Au) was demonstrated.