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Issue 39, 2010
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Silylium ions in catalysis

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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

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Publication details

The article was received on 15 Feb 2010, accepted on 10 Mar 2010 and first published on 19 Apr 2010


Article type: Perspective
DOI: 10.1039/C003097J
Dalton Trans., 2010,39, 9176-9184

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    Silylium ions in catalysis

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

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