Lewis Acid Catalyzed Synthesis of Quinophthalone Pigments Under Solvent-Free Conditions


Department of Chemistry,University of Kashan


Abstract. A simple and very efficient synthesis of quinophthalones has been achieved with using of phthalic anhydride and 2-methylquinoline derivatives as starting materials and BF3/Et2O as catalyst under solvent-free and reflux conditions.

Keywords. Quinophthalone, Quinoline yellow, Pigments, Solvent-free conditions, Lewis acid