Reactivity of silylene complexes

被引：200

作者：

Okazaki, M

Tobita, H

Ogino, H ^{[1
]}

机构：

[1] Univ Air, Miyagi Study Ctr, Sendai, Miyagi 9808577, Japan

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

来源：

DALTON TRANSACTIONS | 2003年 / 04期

关键词：

D O I：

10.1039/b210588h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The metal-silicon bond in silylene complexes is highly polarized in a Mdelta--Sidelta+ manner. Accordingly, silylene complexes show high reactivities toward nucleophiles, such as water, alcohols, ketones, isocyanates, and phosphorus ylides. The metal-silicon double bond can also activate aromatic carbon-hydrogen bonds. Among the various silylene complexes, silyl( silylene) complexes occupy a unique position; these complexes undergo intramolecular 1,3-migration, which is postulated as a key step in the metal-mediated redistribution of substituents on organosilicon compounds. Alkyl( silylene) complexes are not stable and undergo 1,2-alkyl migration to yield alkylsilyl complexes.

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收藏

页码：493 / 506

页数：14

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