A one-pot three-component route for the synthesis of rhodanine derivatives by the reaction of primary amines, carbon disulfide, and maleic anhydride in water is described. The reactions proceed via a sequential Michael addition–intramolecular amide bond formation. Bis(rhodanine) derivatives were also synthesized by using a diamine in this protocol.
Key words
rhodanine derivatives - dithiocarbamates - water - primary amines - carbon disulfide