Propylamine modified with imidazolium ionic moiety grafted onto magnetic nanoparticles (MNPs) was prepared and evaluated as a catalyst for Knoevenagel condensation in water at room temperature. The catalyst was efficient in the reaction to give the condensation products in good yields. It is worth noting that the ionic-tagged catalyst performed significantly better than its ionic tag-free counterpart
制备了用
咪唑鎓离子部分改性的
丙胺,将其接枝到磁性纳米颗粒(MNP)上,并作为室温下
水中Knoevenagel缩合的催化剂进行了评估。该催化剂在反应中有效,以高收率得到缩合产物。值得注意的是,带有离子标记的催化剂的性能明显优于不含离子标记的催化剂。最后,该催化剂可重复使用8次,但催化活性略有下降。