AbstractThe first successful gold(I)‐catalyzed reaction of aryl aldehydes with trimethyl(arylethynyl)silanes to furnish bis‐alkynylated derivatives is reported. Key CC bond‐forming events involved in the catalytic cycle are analyzed.magnified image
Using gold(I) catalysts, terminal acetylenes bearing different substituents can be added to ynamides. The hydroalkynylation reaction is highly regio- and stereoselective. Experiments and quantum chemical calculations reveal a mechanism via dual gold catalysis.