The Synthesis of 2-(Arylthio)arylcyanamides via Copper-Catalyzed Domino Intermolecular C-S Cross-Coupling Reaction of 2-Aminobenzothiazoles with Aryl Iodides
Abstract A series of 2-(arylthio)arylcyanamide derivatives were obtained in excellent yields via a copper-catalyzeddomino C–S cross-coupling of 2-aminobenzothiazoles with aryl iodides. This reaction occurred via an intermolecular C–S bond formation, associated with C–S bond cleavage, followed by an intermolecular S-arylation under ligand-free conditions. Their structures were unambiguously determined
One-pot synthesis of 2-(arylthio)arylcyanamides is accomplished using cheap and air-stable CuSO4·5H2O as a catalyst by domino intra- and intermolecular C−S cross-coupling reactions of 2-(iodoaryl)thioureas with aryl iodides under ligand-free conditions.