One‐Pot Multicomponent Synthesis of Substituted 1,6‐Naphthyridine Derivatives Employing 4‐Aminocumarin

This study synthesized 1,6‐naphthyridine as a novel class of fused heterocyclic compounds with high efficiency using a multicomponent reaction. The reaction involved benzaldehyde or its derivatives, 2 mol of malononitrile, and 4‐aminocumarin in an aqueous solution at room temperature in the presence of SiO 2 /Fe 3 O 4 @MWCNTs as a recyclable catalyst. This study examines the antioxidant properties of 1,6‐naphthyridine in addition to the other research undertaken in this work. The production process of 1,6‐naphthyridine demonstrated several advantageous features, including rapid reactions, high yields of the final product, and straightforward separation of the catalyst and product from the reaction mixture.