2,2′-AZOBENZOTHIAZOLE AS A NEW RECYCLABLE OXIDANT FOR HETEROGENEOUS THIOCYANATION OF AROMATIC COMPOUNDS WITH AMMONIUM THIOCYANATE

A simple synthesis of thiocyanated aromatics has been developed by using heteroaromatic azo compounds such as 2,2'-azobenzothiazole as a mild and heterogeneous oxidant. The reactions proceed at room temperature with good regioselectivity. The hydrazine by-product can be easily separated by filtration and recycled for further use.