Issue 1, 2013
From the journal:

Chemical Science

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

Dieter Webera  and  Michel R. Gagné*a  

* Corresponding authors

a Caudill Laboratories, Department of Chemistry, University of North Carolina at Chapel Hill, NC 27599, USA
E-mail: mgagne@unc.edu

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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Article information

DOI
https://doi.org/10.1039/C2SC21281A
Article type
Edge Article
Submitted
16 Aug 2012
Accepted
06 Sep 2012
First published
10 Sep 2012

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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