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Issue 1, 2013
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σ–π-Diauration as an alternative binding mode for digold intermediates in gold(I) catalysis

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Abstract

While investigating the gold(I)-catalyzed intramolecular hydroarylation of allenes, the structure of a digold-vinyl intermediate was verified. Instead of the previously proposed geminally diaurated binding mode for the digold when L = PPh3, an alternative σ–π-diauration mode was observed with the bulkier ligand L = P(o-Tol)3. Reactivity studies indicate the σ–π-mode has a disproportionate effect on protonolysis reactivity.

Graphical abstract: σ–π-Diauration as an alternative binding mode for digold intermediates in gold(i) catalysis

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Publication details

The article was received on 16 Aug 2012, accepted on 06 Sep 2012 and first published on 10 Sep 2012


Article type: Edge Article
DOI: 10.1039/C2SC21281A
Chem. Sci., 2013,4, 335-338

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    σ–π-Diauration as an alternative binding mode for digold intermediates in gold(I) catalysis

    D. Weber and M. R. Gagné, Chem. Sci., 2013, 4, 335
    DOI: 10.1039/C2SC21281A

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