对甲苯磺酸催化合成环己酮乙二醇缩酮  

Catalytic synthesis of cyclohexanone ethylene ketal with p-toluene sulfonic acid

作　　者：白爱民[1] 巢飞[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《湖北师范学院学报（自然科学版）》2010年第3期95-98,共4页Journal of Hubei Normal University(Natural Science)

基　　金：湖北省自然科学基金资助项目(2005ABA053)

摘　　要：以对甲苯磺酸为催化剂,以环己酮和乙二醇为原料合成了环己酮乙二醇缩酮,通过正交实验法,较系统地研究了合成环己酮乙二醇缩酮的影响因素。实验表明:固定环己酮物质的量为0.2mol,在n(环己酮)∶n(乙二醇)=1∶1.5,催化剂用量为反应物料总质量的2.6%,带水剂环己烷20mL,反应时间60m in的优化条件下,环己酮乙二醇缩酮的收率可达78.9%.Cyelohexanone ethylene ketal was synthesized from cyclohexanone and ethylene glycol in the presence of p - toluene sulfonic acid. The factors influencing the synthesis were investigated. The optimum conditions were found. The optimum conditions were as follows ： molar ratio of cyclohexanone to ethylene glycol is 1 ： 1.5, the mass ratio of the catalyst used to the reactants is 2.6%, dried cyclohexane is 20 mL and the reaction time is 60min. p - Toluene sulfonic acid is an excellent catalyst for synthesizing cyclohexanone ethylene ketal and the product yield can reach over 78.9%.

关 键 词：环己酮乙二醇缩酮 对甲苯磺酸 催化 缩酮反应 

分 类 号：TQ655[化学工程—精细化工]