environmentally friendly procedure was developed for the Knoevenagel condensation of aromatic aldehydes with diethyl malonate in the presence of FeCl3 and N-fluorobenzenesulfonimide as a source of electrophilic fluorine under solvent-free conditions. The scope of the reaction was explored using commercially available substrates. The reaction with substituted salicylaldehydes afforded the corresponding coumarin derivatives
在无溶剂条件下,在FeCl 3和N-
氟苯磺
酰亚胺作为亲电子
氟源的情况下,开发了一种高度环保的方法,用于芳族醛与
丙二酸二乙酯的Knoevenagel缩合反应。使用可商购的底物探索反应的范围。与取代的
水杨醛的反应提供了相应的
香豆素衍
生物,由于其潜在的医学重要性,它们引起了人们的兴趣。