A Highly Chemoselective Cobalt Catalyst for the Hydrosilylation of Alkenes using Tertiary Silanes and Hydrosiloxanes

被引：127

作者：

Ibrahim, Abdulrahman D. ^{[1
]}

Entsminger, Steven W. ^{[1
]}

Zhu, Lingyang ^{[1
]}

Fout, Alison R. ^{[1
]}

机构：

[1] Univ Illinois, Sch Chem Sci, 600 South Mathews Ave, Urbana, IL 61801 USA

来源：

ACS CATALYSIS | 2016年 / 6卷 / 06期

关键词：

cobalt; hydrosilylation; alkenes; tertiary silanes; hydrosiloxanes; chemoselective; IRON CATALYSTS; METAL-COMPLEXES; BOND; CHEMISTRY;

D O I：

10.1021/acscatal.6b01091

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hydrosilylation of alkene substrates bearing additional functionalities is difficult to achieve using earth abundant catalysts and has not been extensively realized with both earth -abundant transition metals and tertiary silanes or hydrosiloxanes. Reported herein is a well-defined bis(carbene) cobalt(I)-dinitrogen complex for the efficient, catalytic antiMarkovnikov hydrosilylation of terminal alkenes, featuring a broad substrate scope. Alkenes containing hydroxyl, amino, ester, epoxide, ketone, formyl, and nitrile groups are selectively hydrosilylated in this reaction sequence. Multinuclear NMR studies of reactive intermediates gave insights into the mechanism.

引用

页码：3589 / 3593

页数：5

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