Regioselective synthesis of 1-aryl-2-p-toluenesulfonyl hydrazides under microwave irradiation

A series of 1-aryl-2-p-toluenesulfonyl hydrazides were synthesized by microwave irradiation under solvent-free conditions. The regioselectivity was excellent, the reaction time was short, the yields were moderate to high (64–91%), and the manipulation process was simple.