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Dinuclear gold-silver resting states may explain silver effects in gold(I)-catalysis.

ABSTRACT: The resting state of the gold(I)-catalyzed hydroarylation of 1 changes in the presence of Ag(+), with silver free catalysts resting at the dinuclear gold structure 5 and Ag(+) containing solutions resting at a heteronuclear species like 6. Adventitious Ag(+) (typically from LAuCl activation) can therefore intercept key organogold intermediates and effect the catalysis even when it does not effect the reaction in Au free control experiments.

SUBMITTER: Weber D

PROVIDER: S-EPMC2913295 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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Dinuclear gold-silver resting states may explain silver effects in gold(I)-catalysis.

Weber Dieter D Gagné Michel R MR

Organic letters 20091101 21

The resting state of the gold(I)-catalyzed hydroarylation of 1 changes in the presence of Ag(+), with silver free catalysts resting at the dinuclear gold structure 5 and Ag(+) containing solutions resting at a heteronuclear species like 6. Adventitious Ag(+) (typically from LAuCl activation) can therefore intercept key organogold intermediates and effect the catalysis even when it does not effect the reaction in Au free control experiments. ...[more]

PMID: 19807117

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