离子液体[bpy][BF_4]中芳基亚甲基麦氏酸的简便合成

Syntheses of Arylidene Meldrum's Acids in Ionic Liquid [bpy][BF_4]

在离子液体[bpy][BF4]中,室温条件下不需要任何催化剂,通过芳醛和麦氏酸的Knoevenagel缩合反应合成了一系列芳基亚甲基麦氏酸.反应条件温和,产率高,操作简单,后处理方便.

The Knoevenagel condensation of aromatic aldehydes with Meldrum＇s acid was carried out in ionic liquid [bpy][BF4] at room temperature to afford a series of arylidene Meldrum＇s acids under catalyst-free condition. The reaction has the advantages of mild condition,excellent yields and simworking-up procedure.