Issue 39, 2010

Silylium ions in catalysis

Abstract

The controversy over “how free the trivalent silicon cation is” placed the emphasis on their spectroscopic and crystallographic characterisation. Those investigations contributed substantially to the understanding of the role of σ or π Lewis basic molecules in the chemistry of extremely potent Lewis acids, culminating in the discovery of innocent, that is non-coordinating, anions and an X-ray molecular structure. Synthetic uses of such reactive intermediates are however underrepresented yet a few recent contributions offer a glimpse of their true potential. This perspective provides a concise overview of known silylium ions, followed by examples of their uses as catalysts in C–F bond activation and C–C bond formation, namely challenging Diels–Alder reactions.

Graphical abstract: Silylium ions in catalysis

Article information

Article type
Perspective
Submitted
15 Feb 2010
Accepted
10 Mar 2010
First published
19 Apr 2010

Dalton Trans., 2010,39, 9176-9184

Silylium ions in catalysis

H. F. T. Klare and M. Oestreich, Dalton Trans., 2010, 39, 9176 DOI: 10.1039/C003097J

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