茴香脑臭氧化制备茴香醛  

Preparation of Anisaldehyde from Anethole by Ozonolysis Reaction

作　　者：王庆军[1] 刘福胜[1] 于世涛[1] 卢红霞[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2007年第2期117-120,共4页Journal of Qingdao University of Science and Technology:Natural Science Edition

摘　　要：以茴香脑为原料,乙酸和环己烷的混合物做溶剂,臭氧化法制备茴香醛。考察了溶剂、臭氧化时间、还原剂用量、还原分解时间和还原温度对反应结果的影响,初步探讨了臭氧化反应级数。优化的工艺条件为,m(乙酸)∶m(环己烷)=1∶4,臭氧化时间为100min,n(NaHSO3)/n(茴香脑)=1.1,还原分解时间60 min,还原温度80℃。在此条件下,产品收率≥84%,纯度≥98%。The preparation of anisaldehyde by ozonolysis reaction from anethole was studied. Using the mixture of acetic acid and cyclohexane as solvent, the effects of factors such as amount of solvent, ozonolysis temperature, ozonolysis time, amount of reductant and reduction decomposition time on reaction results were examined. The reaction order was also studied. The obtained optimum conditions were re（acetic acid） ： m（cyclohexane）= 1：4, ozonolysis time 100 min, n（NaHSO3）/n（anethole） = 1.1, reduction decomposition time 60 rain, reduction temperature 80 ℃. Under above conditions, the yield of product was over 84% with the purity≥98%.

关 键 词：茴香醛 臭氧化 茴香脑 反应级数 

分 类 号：TQ031.2[化学工程]