Monodentate phosphorus-coordinated palladium(Ⅱ)complexes as new catalyst for Mizoroki-Heck reaction of aryl halides with electron-deficient olefins  

作　　者：Fang Zhao Li Xin Yingying Zhang Xuefeng Jia 

机构地区：[1]School of Chemical and Material Science, Shanxi Normal University [2]Department of Chemistry, Modern College of Arts and Sciences, Shanxi Normal University

出　　处：《Chinese Chemical Letters》2018年第3期493-496,共4页中国化学快报（英文版）

基　　金：Financial support from Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(No. 2015157);Teaching Reform Project of Shanxi Normal University(No. SD2014JGKT-52);Undergraduate Training Programs for Innovation and Entrepreneurship of Modern College of Arts and Sciences, Shanxi Normal University(No. WL2015CXCY-YJ-26)

摘　　要：Four novel palladium（（Ⅱ）） complexes coordinated by phosphorus atoms from both 3,5-disubstituted-1H- 1,2,4-diazaphospholes in monodentate fashion were developed as efficient catalyst for the Mizoroki- Heck reaction of aryl halides with electron-deficient olefins. The coupling reaction of awl halide bearig different functional groups with olefin derivatives took place and the corresponding products were isolated in good to excellent yields under optimal conditions. The procedure exhibits good functional group tolerance and wide substrate scope. This Mizoroki-Heck reaction was further achieved using Pd（OAc）2 and 3,5-di-isopropyl-1H-1,2,4-diazaphospholes as combined catalyst, which provide the convenient and alternative method in organic synthesisFour novel palladium（（Ⅱ）） complexes coordinated by phosphorus atoms from both 3,5-disubstituted-1H- 1,2,4-diazaphospholes in monodentate fashion were developed as efficient catalyst for the Mizoroki- Heck reaction of aryl halides with electron-deficient olefins. The coupling reaction of awl halide bearig different functional groups with olefin derivatives took place and the corresponding products were isolated in good to excellent yields under optimal conditions. The procedure exhibits good functional group tolerance and wide substrate scope. This Mizoroki-Heck reaction was further achieved using Pd（OAc）2 and 3,5-di-isopropyl-1H-1,2,4-diazaphospholes as combined catalyst, which provide the convenient and alternative method in organic synthesis

关 键 词：Palladium（Ⅱ） complexes Monodentate phosphine ligands Mizoroki-Heck reaction Aryl halides Olefins 

分 类 号：O643.36[理学—物理化学] O614.823[理学—化学]