含羰基溶剂体系的茴脑臭氧化反应研究

Study on ozonolysis of anethole in single solvent with carbonyl group

摘要:

以茴脑为原料，臭氧化法制备茴香醛。通过实验筛选出茴香醛产率较好的含羰基单一溶剂体系，并考察了溶剂种类、溶剂用量、臭氧气流量和反应时间对反应结果的影响。优化的工艺条件为：乙酸乙酯或丙酮为溶剂，m(茴脑):m(溶剂)=1:3，臭氧气流量0.06 m3/h，反应时间80min，在此条件下，茴脑转化率达100%，乙酸乙酯溶剂中茴香醛产率可达73.61%，丙酮溶剂中茴香醛产率可达74.54%。

Abstract:

Anisaldehyde was prepared by the ozonolysis of anethole. By experiment, a single solvent system with carbonyl group was fond in which anisaldehyde had a good yield. Meanwhile, the species and mass of solvent and flow of ozone and time of the reactivity were investigated. The optimum conditions are as follows: acetic ether or acetone as solvent, the mass ratio of anethole and solvent is 1:3, the flow of ozone is 0.06 m3/h, the time of the reactivity is 80min. In this condition, the percent conversion of anethole is 100% and the yield of anisaldehyde is 74.54% in ethyl acetate and 73.61% in acetone.