A simple and facile procedure for the synthesis of 14-aryl- or 14-alkyl-14H-dibenzo[aj]xanthenes is described. The procedure takes place by the one-pot condensation of 2-naphthol with aldehydes in the presence of anhydrous ceric sulfate as the catalyst under solvent-free conventional heating and microwave irradiation.Key words: xanthene, one-pot condensation, aldehyde, 2-naphthol, ceric sulfate, solvent-free, microwave irradiation.
本文介绍了一种简单易行的 14-芳基或 14-烷基-14H-二苯并[aj]氧杂蒽的合成方法。在无溶剂常规加热和微波辐照条件下,以无水硫酸铈为催化剂,通过 2-萘酚与醛类的单锅缩合反应进行合成。