A series of 3,4-dihydro-12-phenyl-2H-benzo[b]xanthene-1,6,11(12H)-trione derivatives have been synthesized in high yields in the presence of ionic liquid [bmim+]Br−. The reaction work-up is simple and the ionic liquid can be easily separated from the product and reused.
一系列3,4-二氢-12-苯基-2H-苯并[b]咕吨-1,6,11(12H)-三酮衍
生物已在
离子液体[bmim+]Br−存在下以高产率成功合成。反应后处理简单,且
离子液体可从产物中容易地分离并重复使用。