硅氢加成
钴
催化作用
硅烷化
喹啉
催化循环
化学
有机化学
作者
Cassandre Cassiopée Bories,Marion Barbazanges,Étienne Derat,Marc Petit
出处
期刊:ACS Catalysis
日期:2021-11-10
卷期号:11 (22): 14262-14273
被引量:24
标识
DOI:10.1021/acscatal.1c03886
摘要
Here, we describe the formation and use of silyl cobalt (III) dihydride complexes as powerful catalysts for the hydrosilylation of a variety of imines starting from a low-valent well-defined cobalt (I) complex. The reaction is efficient at low catalyst loadings with a diverse range of imines bearing various protecting groups, as well as aliphatic ketimines and quinoline. Kinetics, DFT calculations, NMR spectroscopic studies, deuteration experiments, and X-ray diffraction analyses allowed us to propose a catalytic cycle based on silyl dihydrocobalt (III) complexes performing a hydrocobaltation.
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