T. Lauterbach, M. Livendahl, A. Rosellón, P. Espinet, A. M. Echavarren
Org. Lett. 2010, 12, 3006-3009
Abstract: The Sonogashira coupling reaction is not catalyzed by AuI/dppe in the absence of Pd complexes. However, addition of 0.1 mol % of Pd(0) led to efficient cross-coupling reactions. The most plausible catalytic cycles for the Au-catalyzed cross-coupling reactions have been examined and are unlikely in the absence of Pd contamination.