title: Bifunctional ligands in combination with phosphines and Lewis acidic phosphonium [corrected] for the carbonylative Sonogashira reaction.
abstract: The combination of phosphine-ligated Pd catalysis and phosphonium(V) [corrected] Lewis acid catalysis has been developed for the carbonylative Sonogashira reaction using phosphino-phosphonium [corrected] salts (L1-L4) as bifunctional ligands, in which the Lewis acidic phosphonium(V) [corrected] cations can form secondary bonds with O atoms (in C=O) to cooperatively stabilize Pd-acyl intermediates.
authors.affiliation: Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, 200062 Shanghai, China. yliu@chem.ecnu.edu.cn.
authors.forename: Chen
authors.initials: C
authors.lastname: Tan
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Huan
authors.initials: H
authors.lastname: Liu
authors.forename: Xiao-Li
authors.initials: XL
authors.lastname: Zhao
authors.forename: Yong
authors.initials: Y
authors.lastname: Lu
authors.forename: Ye
authors.initials: Y
authors.lastname: Liu