The synthesis of a novel series of substituted 1,4-dihydropyridines was achieved in aqueous media by base-catalyzed three-component Hantzsch reaction of 2-chloro
quinoline-3-carbaldehydes,
ammonium acetate, and alkyl acteoacetate in good to high yields. Important advantages of this method are easy access to a library of novel
quinoline and quinolone
derivatives, green reaction conditions with water as solvent, and ease of purification.