Efficient one-pot synthesis of 2,3-dihydroquinazoline-4(1H)-ones promoted by FeCl3/neutral Al2O3
作者:Suo Juan Wu、Zi Qiang Zhao、Jing Shuo Gao、Bao Hua Chen、Guo Feng Chen
DOI:10.1007/s11164-018-03732-w
日期:2019.4
2,3-Dihydroquinazolin-4(1H)-one derivatives have been synthesized via one-pot reaction of isatoic anhydride, aromatic aldehyde, and ammonium acetate catalyzed by FeCl3/neutral Al2O3 in tert-butanol under reflux conditions. Inexpensive and easily available reagents, convenient work-up procedure, reusable catalyst, and moderate to good yield are the salient features of this protocol.
通过在一锅煮反应中使用苯并异酰脲、芳香醛和乙酸铵,以FeCl3/中性Al2O3为催化剂,在特丁醇中回流条件下合成了2,3-二氢喹唑啉-4(1H)-酮衍生物。廉价易得的试剂、操作简便、催化剂可重复使用以及中等至良好的产率是该方法的显著特点。