Efficient synthesis of 1,2-benzisothiazoles from o-haloarylamidines and elemental sulfur via N–S/C–S bond formation under transition-metal-free conditions

Abstract

An efficient method for the synthesis of 1,2-benzisothiazoles from amidines and elemental sulfur via N–S/C–S bond formation under transition-metal-free conditions is described. This reaction is performed smoothly under simple conditions to give the corresponding products in good to high yields with good functional group tolerance.