Lewis acid-catalyzed hydrometalation and carbometalation of unactivated alkynes

被引：67

作者：

Asao, N ^{[1
]}

Yamamoto, Y ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2000年 / 73卷 / 05期

关键词：

D O I：

10.1246/bcsj.73.1071

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hydrosilylation, hydrostannation, carbosilylation, and carbostannation of unactivated alkynes with organosilanes, or organostannanes proceed effectively in the presence of catalytic amounts of Lewis acids to produce the corresponding vinylsilyl or vinylstannyl compounds in a highly regio- and stereoselective way. Although it is well known that transition metal catalyzed hydrometalations and carbometalations, in general, proceed in a cis-manner, the Lewis acid-catalyzed reactions proceed in a trans-manner exclusively. The coordination of a triple bond to Lewis acids is proposed as a key step for the Lewis acid catalyzed reactions.

引用

页码：1071 / 1087

页数：17

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