Copper-catalysed one-pot synthesis of N-substituted benzo[d]isothiazol-3(2H)-ones via C-S/N-S bond formation

One-pot synthesis of N-substituted benzo[d]isothiazol-3(2H)-ones has been described using copper-catalysis from N-substituted 2-halobenzamides and sulfur powder via C-S/N-S bond formation with high yield.