Gold-Catalyzed Reactions of Enynals with Alkenes for Synthesis Binaphthyl Derivatives.

A PPh 3 Au[B(C 6 F 5 ) 4 ]-catalyzed reaction of enynals and alkenes for the construction of binaphthyl derivatives was described. This transformation was achieved through o -Quinodimethane ( o -QDM) intermediate's extended conjugated addition process. The reaction has the advantages of wide substrate scopes, mild reaction conditions, high efficiency, and good scalability.