Ni-Catalyzed electrophile driven regioselective arylative cyclization of ortho-functional diaryl acetylenes for the synthesis of pyridine and indene derivatives

Abstract

A regioselective carbonickelation followed by cyclization, an arylative cyclization, of ortho functional diaryl acetylenes is achieved apparently through an electrophile driven alkyne polarization. A series of selectively substituted di aryl isoquinoline, pyridine and indene derivatives are thus accessed from diarylacetylenes with azide, carbonyl and cyanide tethers.