Potassium bromide catalyzed NS bond formation via oxidative dehydrogenation

Abstract N -Substituted benzo[ d ]isothiazol-3(2 H )-ones are a family of compounds with extremely important application. Recently, we have developed a new green pathway to synthesize these compounds via potassium bromide-catalyzed intramolecular oxidative dehydrogenative cyclization. This reaction has high functional group tolerance and affords excellent yield even in gram scale.