Gold Catalysis: Observation of a Two‐Fold Intermolecular Hydroarylation of Unactivated C–C Triple Bonds

Abstract

Abstract The cationic binuclear catalyst [(Mes 3 PAu) 2 Cl]BF 4 enables the reaction of 2‐methyl‐ or 2‐pentylfuran with phenylacetylene, 1‐pentyne or 1‐heptyne to yield the products of a twofold hydroarylation of the alkyne. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)