Issue 4, 2003

Reactivity of silylene complexes

Abstract

The metal–silicon bond in silylene complexes is highly polarized in a Mδ−–Siδ+ 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.

Graphical abstract: Reactivity of silylene complexes

Article information

Article type
Perspective
Submitted
28 Oct 2002
Accepted
27 Nov 2002
First published
23 Dec 2002

Dalton Trans., 2003, 493-506

Reactivity of silylene complexes

M. Okazaki, H. Tobita and H. Ogino, Dalton Trans., 2003, 493 DOI: 10.1039/B210588H

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