A copper-catalyzed formal O–H insertion reaction of α-diazo-1,3-dicarbonyl compounds to carboxylic acids with the assistance of isocyanide†
Abstract
A novel copper-catalyzed formal O–H insertion of α-diazo-1,3-dicarbonyl compounds to carboxylic acids has been developed, providing a straightforward synthetic method for α-acyloxy-1,3-dicarbonyl compounds, in which the activation of carboxylic acids by isocyanide plays a crucial role.