Cu‐catalyzed dehydrogenative CO arylation for the synthesis of 6‐methyl benzofuro[3,2‐c] quinoline derivatives

Cu-catalyzed dehydrogenative C<span class='icomoon'></span>O arylation for the synthesis of 6-methyl benzofuro[3,2-c] quinoline derivatives

Copper catalyzed dehydrogenative C—O arylation


Abstract

A novel strategy for the synthesis of 6-methyl benzofuro[3,2-c] quinoline derivatives via copper-catalyzed dehydrogenative CO arylation has been presented. Optimization studies have been carried out by varying various catalysts, bases, solvents, and other physical parameters. Keeping use of this dehydrogenative cross-coupling CO arylation reaction, a variety of bioactive building blocks like fused benzofuro quinoline heterocycles were smoothly assembled in moderate to higher yields.