Abstract
Ultrasonication aided copper catalyzed facile synthesis of highly functionalized aryl sulphones has been demonstrated by employing aryl sulphonyl hydrazides as suitable substrates in excellent yields in short time. Various 1-aryltriazene derivatives were used as a coupling partner in the presence of a [TMG][CH3COO] IL without any base or additives. The potential for the recycling and reuse of IL was also explored. Similarly, we elaborated the reaction scope by synthesizing copper-catalyzed aryl sulphones aided by ultrasonication replacing aryltriazenes with aryl boronic acids as coupling partner in [TMG][CH3COO].