An Efficient Synthesis of Polymethylene-bis-Aroyl Thiourea Derivatives under the Condition of Phase Transfer Catalysis

Abstract

Reaction of polymethylene diamine with aroyl chloride and ammonium thiocyanate under the condition of solid-liquid phase transfer catalysis using polyethylene glycol-400(PEG-400) as the catalyst yielded polymethylene-bis-aroyl thiouiea derivatives 3a -- 3h in good to excellent yield