Ursolic Acid‐Bonded Magnetic Nanoparticles Catalyzed the One‐Pot Synthesis of New Hexahydroquinoline‐3‐carboxamides

Abstract In this research, we present an effective method for synthesizing new derivatives of hexahydroquinoline‐3‐carboxamides through a one‐pot synthesis using formylarylsulfonates, dimedone or 1,3‐cyclohexanedione, acetoacetanilide, and ammonium acetate in high to excellent yield in EtOH at reflux conditions. This method utilizes ursolic acid (UA)‐bonded magnetic nanoparticles (nano‐Fe 3 O 4 @UA) as a catalyst. The method offers several advantages, including high yield, short reaction time, and simplicity, making it an attractive and efficient option in the emerging field of hexahydroquinolines synthesis.