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学科主题: 金属有机化学
题名: Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes
其他题名: 三配位一价钴烷基硅基络合物催化的炔烃的区域选择性、立体选择性硅氢化反应
作者: Mo ZB(莫贞波); Xiao J(肖洁); Gao YF(高亚飞); Deng L(邓亮)
通讯作者: 邓亮
刊名: J. Am. Chem. Soc.
发表日期: 2014
DOI: 10.1021/ja510924v
卷: 136, 期:50, 页:17414-17417
收录类别: SCI
英文摘要: A three-coordinate cobalt(I) complex exhibits high catalytic efficiency and selectivity as well as good functional group compatibility in alkyne hydrosilylation. [Co(IAd)(PPh3)(CH2TMS)] (1) (IAd = 1,3-diadamantylimidazol-2-ylidene) facilitates regio- and stereoselective hydrosilylation of terminal, symmetrical internal, and trimethylsilyl-substituted unsymmetrical internal alkynes to produce single hydrosilylation products in the forms of beta-(E)-silylalkenes, (E)-silylalkenes, and (Z)-alpha,alpha-disilylalkenes, respectively, in high yields. The comparable catalytic efficiency and selectivity of the Co(I) silyl complex [Co(IAd)(PPh3)(SiHPh2)] that was prepared from the reaction of 1 with H2SiPh2, and the isolation of an alkyne Co(I) complex [Co(IAd)(eta(2)-PhC=CPh)(CH2TMS)] from the reaction of 1 with the acetylene, point out a modified Chalk-Harrod catalytic cycle for these hydrosilylation reactions. The high selectivity is thought to be governed by steric factors.
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/39138
Appears in Collections:金属有机化学国家重点实验室_期刊论文

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作者单位: 中科院上海有机化学研究所

Recommended Citation:
Mo ZB,Xiao J,Gao YF,et al. Regio- and Stereoselective Hydrosilylation of Alkynes Catalyzed by Three-Coordinate Cobalt(I) Alkyl and Silyl Complexes[J]. J. Am. Chem. Soc.,2014,136(50):17414-17417.
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