Highly Chemoselective Palladium-Catalyzed Cross-Trimerization between Alkyne and Alkenes Leading to 1, 3, 5-Trienes or 1, 2, 4, 5-Tetrasubstituted Benzenes with …
A palladium-catalyzed 1: 2 linear/cyclic cross-trimerization of alkyne with alkenes using molecular oxygen as the sole oxidant has been reported for the first time. A series of 1, 3, 5- trienes and 1, 2, 4, 5-tetrasubstituted benzenes are obtained with high chemoselectivity respectively and mechanisms of these reactions are proposed based on some controlled examination.
