硅钨杂多酸催化合成丁酮1,2-丙二醇缩酮  

Synthesis of Butanone 1,2-Propanediol Ketal Catalyzed by H_4 SiW_(12) O_(40)

作　　者：董小玲[1] 吴君[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,黄石435002

出　　处：《精细石油化工进展》2009年第5期17-18,21,共3页Advances in Fine Petrochemicals

基　　金：湖北师范学院大学生科研基金资助项目

摘　　要：以硅钨杂多酸作催化剂,丁酮和1,2-丙二醇为原料合成丁酮1,2-丙二醇缩酮,采用正交试验筛选出了硅钨酸H_4SiW_(12)O_(40)催化合成缩酮的最佳反应条件:丁酮200 mmol,n(丁酮): n(1,2-丙二醇)1:1.4,催化剂用量占反应物总质量的0.5%,反应时间1.5 h,丁酮1,2-丙二醇缩酮的收率可达81.2%。Butanone 1, 2 -propanediol ketal was synthesized from butanone and 1,2 -propanediol using H4SiW12O40 as a catalyst. The optimal reaction conditions were screened by orthogonal test method. The yield of butanone 1,2 - propanediol ketal can reach 81.2% under the conditions that butanone is 200 mmol, molar ratio of butanone to 1,2 -propanediol glycol is 1 ： 1.4, the quantity of catalyst is equal to 0.5% of feed stocks, and the reaction time is 1.5 h ours.

关 键 词：丁酮1 2-丙二醇缩酮 硅钨酸 催化 正交试验 

分 类 号：TQ224.2[化学工程—有机化工]