Regioselective Syntheses of 3-Benzyl-Substituted 7H-Thiazolo(3,2-a)pyrimidine-7-ones through Palladium-Catalyzed Heteroannulation of Acetylenic Compounds

Abstract

An efficient synthesis of 3-benzyl-substituted 7H-thiazolo[3,2-a]pyrimine-7-ones in acetonitrile is accomplished via Pd- and Cu-catalyzed reaction of 2-mercaptopropargylpyrimidone with various aryl iodides in the presence of triethylamine as the base.