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Dr. Amandine Guérinot, Weizhen Fang, Dr. Marie Sircoglou, Dr. Christophe Bour, Dr. Sophie Bezzenine-Lafollée and Prof. Dr. Vincent Gandon Copper Salts as Additives in Gold(I)-Catalyzed Reactions Angewandte Chemie International Edition 52

Article first published online: 19 APR 2013 | DOI: 10.1002/anie.201300600

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The right combination: CuI and CuII salts can advantageously replace silver additives in AuI-catalyzed reactions. On the basis of reactivity studies and NMR experiments, it is believed that anion metathesis between CuYn (Y=OTf, BF4, PF6, SbF6) and [R3PAuCl] takes place to give [R3PAu]Y. As this process is slow, there is no fast decay of the active species, thus allowing large-scale reactions, even at high temperatures, with low loadings of the gold complex.

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