MCM-41分子筛负载磷钨钼酸催化合成环己酮1,2-丙二醇缩酮  

Catalytic Synthesis of Cyclohexanone 1,2-Propanediol Ketal with H_3PW_6Mo_6O_ (40)/ MCM-41

作　　者：尹国俊[1] 

机构地区：[1]湖北师范学院化学与环境工程系,黄石435002

出　　处：《精细石油化工进展》2006年第5期18-20,共3页Advances in Fine Petrochemicals

基　　金：湖北省自然科学基金(2005ABA053)资助项目。

摘　　要：以MCM-41分子筛负载磷钨钼杂多酸为催化剂,以环己酮和1,2-丙二醇为原料合成了环己酮1,2-丙二醇缩酮,探讨了MCM-41分子筛负载磷钨钼杂多酸催化剂对缩酮反应的催化活性,较系统地研究了原料量比、催化剂用量、反应时间诸因素对缩酮反应的影响。实验表明,MCM-41分子筛负载磷钨钼杂多酸催化剂是合成环己酮1,2-丙二醇缩酮的良好催化剂,在n(环己酮)∶n(1,2-丙二醇)=1∶1.6,催化剂用量为反应物总质量的0.20%,环己烷作带水剂,反应时间45min的优化条件下,环己酮1,2-丙二醇缩酮的收率可达89.1%。Cyclohexanone 1,2- propanediol ketal was synthesized from cyclohexanone and 1,2 - propylene glycol in the presence of H3PW6Mo6O40/MCM- 41. The factors influencing the synthesis were discussed and the optimum conditions were found. The optimum conditions were as follows ： molar ratio of cyclohexanone to 1,2 - propylene glycol 1：1.6, the quantity of catalyst equal to 0.20% of feed stocks, and the reaction time 45 rain utes. H3PW6Mo6O4o/MCM - 41 was an excellent catalyst for synthesizing cyclohexanone 1,2 - propanediol ketal and its yield could reach over 89.1%.

关 键 词：环己酮1 2-丙二醇缩酮 磷钨钼酸 MCM-41分子筛 催化 

分 类 号：O624.42[理学—有机化学]