Abstract A simple and efficient procedure has been developed for the preparation of 14-aryl-14H-dibenzo[a,j]xanthene derivatives using fluoroboric acid adsorbed on silica gel as a heterogeneous catalyst. The methodology involves the one-pot condensation reaction of β-naphthol and aryl aldehydes under solvent-free conventional heating conditions. The present approach offers several advantages such as
摘要 开发了一种以吸附在
硅胶上的
氟硼酸作为多相催化剂制备 14-芳基-14H-二苯并[a,j]呫吨衍
生物的简单有效方法。该方法涉及 β-
萘酚和芳醛在无溶剂常规加热条件下的一锅缩合反应。本方法提供了几个优点,例如反应时间更短、后处理简单、产率高、成本低和反应条件温和。该催化剂易于回收和重复使用而不会损失其催化活性。