Bis(phosphine)cobalt-Catalyzed Highly Regio- and Stereoselective Hydrosilylation of 1,3-Diynes

被引：15

作者：

Kong, Degong ^{[1
,2
,3
]}

Hu, Bowen ^{[2
,3
]}

Yang, Min ^{[1
]}

Gong, Dawei ^{[1
,2
,3
]}

Xia, Haiping ^{[2
,3
]}

Chen, Dafa ^{[2
,3
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Peoples R China

[2] Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China

[3] Southern Univ Sci & Technol, Guangdong Prov Key Lab Catalysis, Dept Chem, Shenzhen 518055, Peoples R China

来源：

ORGANOMETALLICS | 2020年 / 39卷 / 24期

基金：

中国国家自然科学基金;

关键词：

Z-SELECTIVE HYDROSILYLATION; MARKOVNIKOV HYDROSILYLATION; CATALYZED HYDROSILYLATION; ALKYNE HYDROSILYLATION; COUPLING REACTIONS; TERMINAL ALKYNES; COBALT; SILICON; ACTIVATION; COMPLEXES;

D O I：

10.1021/acs.organomet.0c00540

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Seven bis(phosphine) cobalt complexes and one tris(phosphine) cobalt complex were tested for hydrosilylation of 1,3-diynes, among which dppp-CoCl2 (1 mol %) exhibited the best regio- and stereoselectivity, affording (E)-2-silyl-1,3-enynes through monohydrosilylation at the internal carbon of the 1,3-diyne unit via syn addition. Good functional tolerance was achieved, 32 substrates were tested, and the reactions could be readily amplified to a gram level. For most of the substrates, the transformation could be completed in 5 min at room temperature. To date, this is the most effective base-metal-catalyzed system for the selective hydrosilylation of 1,3-diynes.

引用

页码：4437 / 4443

页数：7

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