Nickel-catalyzed cooperative B-H bond activation for hydroboration of N–heteroarenes, ketones and imines  

作　　者：Zhuohao Zhao Jianguo Liu Chen-Ho Tung Wenguang Wang 

机构地区：[1]School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,China [2]College of Chemistry,Beijing Normal University,Beijing 100875,China

出　　处：《Chinese Chemical Letters》2023年第10期135-139,共5页中国化学快报（英文版）

基　　金：the financial support from the National Natural Science Foundation of China (Nos. 22022102 and 22071010);the financial support from China Postdoctoral Science Foundation (No. 2021M700462)。

摘　　要：We report two air-stable nickel(II) half-sandwich complexes,Cp*Ni(1,2-Cy_(2)PC_(6)H_(4)O)(1) and Cp*Ni(1,2-Ph_(2)PC_(6)H4NH)(2),for cooperative B-H bond activation and their applications in catalytic hydroboration of unsaturated organic compounds.Both 1 and 2 react with HBpin by adding the B-H bond across the Ni-X bond (X=O or N),giving rise to the 18-electron Ni(II)-H active species,[H1(Bpin)]and[H_(2)(Bpin)].Subtle tuning of the Ni-X pair and the supporting ancillary phosphine have a significant effect on the reactivity and catalytic performance of Cp*Ni(1,2-R_(2)PC_(6)H_(4)X).Unlike[H_(2)(Bpin)],the activation of HBpin in[H1(Bpin)]is reversible,which enables the Ni-O complex to be an effective cooperative catalyst in the hydroboration of N-heteroarenes,and as well as ketones and imines.

关 键 词：Nickel complex Metal-ligand cooperation B-H activation HYDROBORATION Metal hydride 

分 类 号：O621.251[理学—有机化学]