Issue 1, 2013

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

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

Supplementary files

Article information

Article type
Edge Article
Submitted
16 Aug 2012
Accepted
06 Sep 2012
First published
10 Sep 2012

Chem. Sci., 2013,4, 335-338

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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