活性炭负载硅钨酸催化合成环己酮-1,2-丙二醇缩酮  

Catalytic synthesis of cyclohexanone 1,2-propanediol ketal over H_4SiW_(12)O_(40)/C

作　　者：杨水金[1] 陈迪海[1] 吕宝兰[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《化学试剂》2006年第9期544-546,共3页Chemical Reagents

基　　金：湖北省自然科学基金(2005ABA053);湖北省教育厅重点科研基金(B200522004)资助项目

摘　　要：较系统地研究了以活性炭负载硅钨酸为催化剂,对环己酮与1,2-丙二醇为原料合成环己酮-1,2-丙二醇缩酮的反应条件。在环己酮与1,2-丙二醇的投料物质的量比为1∶1.5,催化剂用量占反应物料总质量的0.5%,反应时间为1 h条件下,环己酮-1,2-丙二醇缩酮的收率可达76.5%。Cyclohexanone 1,2-pmpanediol ketal was synthesized from cyclohexanone and 1,2-propanediol in the presence of H4SiW12O40/C. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions were molar ratio of cyelohexanone to 1,2-pmpanedlol is 1 ： 1.5 ,the quantity of catalyst was equal to 0.5% of feed stocks, and the reaction time was 1.0 h.H4SiW12O40/C is an excellent catalyst for synthesizing cyclohexanone 1,2-propanediol ketal and its yield could be up to 76.5 %.

关 键 词：环己酮-1 2-丙二醇缩酮 活性炭负载硅钨酸 缩酮 催化 

分 类 号：O624.4[理学—有机化学]