Nickel-catalyzed highly regio- and chemoselective cocyclotrimerization of propiolates with allenes: a novel route to polysubstituted benzene derivatives

摘要

The Ni(dppe)Br_2/Zn system effectively catalyzes the cocyclotrimerization of propiolates with allenes. The reaction is highly regio- and chemoselective to afford polysubstituted benzene derivatives in good to excellent yields.