硫酸高铈催化合成苹果酯-A的研究

Study on catalytic synthesis of frucfone by cerium sulfate

以硫酸高铈为催化剂,通过乙酰乙酸乙酯和乙二醇反应合成了苹果酯,研究了各有关因素对产品收率的影响。实验表明,硫酸高铈是合成苹果酯的良好催化剂,在酯醇物质的量比为1∶1.2,催化剂用量为0.3g/0.1mol乙酰乙酸乙酯,环己烷8mL,反应时间2h的条件下,苹果酯的收率可达93.1%。

Fructone was synthesized from ethyl acetoacetate and ethanediol using cerium sulfate as the catalyst, The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are： molar ratio of ethyl acetoacetate to ethanediol was 1：1.2, the amount of catalyst was 0.3g/0.1mol ethyl acetoacetate, and the reaction time was 2h. Cerium sulfate was a good catalyst for synthesizing fructone and the yield can reach up to over 93.1%.