One-pot Synthesis of 2-Substituted Benzoxazoles Promoted by Copper Acetate Monohydrate

An efficient synthesis of 2-substituted benzoxazoles via copper acetate monohydrate oxidative coupling of aldehydes with o-aminophenol is described. This synthetic strategy has some advantages as simple procedure, inexpensive and easily available catalyst, and facile isolation of the products in moderate to good yields. Keywords: Benzoxazoles, aromatic aldehydes, o-aminophenol, copper acetate monohydrate, oxidative cyclization.