Sc(OTf)3 Catalyzed Electrophilic Amination of Arenes: An Expeditious Synthesis of Aryl Hydrazides

Abstract
Arenes react smoothly with diethyl azodicarboxylate in the presence of a catalytic amount of scandium triflate in dichloromethane at ambient temperature to afford the corresponding aryl hydrazides in high yields with high regioselectivity.