One-Pot Synthesis of 1,4-Dihydropyridine and Polyhydro-quinoline Derivatives via L-Proline Catalyzed Hantzsch Multicomponent Reaction under Ultrasound Irradiation
作者:Shengrong Guo、Yanqin Yuan
DOI:10.1002/cjoc.201090151
日期:——
L‐Proline efficiently catalyzed the multi‐component Hantzschreaction in EtOH at 60°C underultrasoundirradiation to afford the corresponding 1,4‐dihydropyridine and polyhydroquinoline derivatives in high yields. This method offers the advantages of neutral and mild reaction conditions, high to excellent yields of the products and simple workup.