Cobalt-Catalyzed Z-Selective Hydrosilylation of Terminal Alkynes

被引：130

作者：

Teo, Wei Jie ^{[1
]}

Wang, Chao ^{[1
]}

Tan, Ye Wei ^{[1
]}

Ge, Shaozhong ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 15期

关键词：

alkynes; cobalt; homogeneous catalysis; hydrosilylation; vinylsilanes; STEREOSELECTIVE HYDROSILYLATION; ALKENE HYDROSILYLATION; RUTHENIUM COMPLEX; HYDROBORATION; REGIO; MECHANISM; ISOMERIZATION; HYDROSILATION; EFFICIENT; RHODIUM;

D O I：

10.1002/anie.201700868

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A cobalt-catalyzed Z-selective hydrosilylation of alkynes has been developed relying on catalysts generated from bench-stable Co(OAc)(2) and pyridine-2,6-diimine (PDI) ligands. A variety of functionalized aromatic and aliphatic alkynes undergo this transformation, yielding Z-vinylsilanes in high yields with excellent selectivities (Z/E ratio ranges from 90: 10 to >99: 1). The addition of a catalytic amount of phenol effectively suppressed the Z/E-isomerization of the Z-vinylsilanes that formed under catalytic conditions.

引用

页码：4328 / 4332

页数：5

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