以硝酸铈铵(CAN)为催化剂,PEG-400为溶剂,芳香醛与β-环己二酮于85℃反应2.0 h~3.0 h合成了一系列氧杂蒽类衍生物,收率83%~96%,其结构经1H NMR和13C NMR确证。CAN/PEG-400可回收套用4次。
A series of xanthenedione derivatives in yield of 83% -96% were synthesized by the reaction of aromatic aldehydes with β- cyclohexanedione using ammonium ceric nitrate(CAN) as the catalyst and PEG-400 as the solvent at 85 ℃ for 2.0 h-3.0 h.The structures were confirmed by 1H NMR and 13C NMR.CAN/PEG-400 can be recycled reuse four times.