H_3PW_6Mo_6O_(40)/TiO_2-SiO_2催化合成丁酮1,2-丙二醇缩酮  

Catalytic Synthesis of Butanone 1,2-Propanediol Ketal with H_3PW_6Mo_6O_(40)/TiO_2-SiO_2

作　　者：王伊婷[1] 彭放[2] 王潘[2] 杨水金[1] 

机构地区：[1]湖北师范学院文理学院,黄石435002 [2]湖北师范学院化学化工学院,黄石435002

出　　处：《化工中间体》2013年第11期22-25,共4页

摘　　要：以H_3PW_6Mo_6O_(40)/TiO_2-SiO_2为催化剂,以合成丁酮1,2-丙二醇为原料催化合成丁酮1,2-丙二醇缩酮。讨论丁酮、1,2-丙二醇物质的量比,催化剂用量,带水剂环己烷用量和反应时间对收率的影响。实验结果表明,H_3PW_6Mo_6O_(40)/TiO_2-SiO_2对丁酮1'2-丙二醇缩酮反应具有良好的催化效果。在n(丁酮):n(1,2-丙二醇)=1:1.4,催化荆的用量占反应物料总质量的1.2%,环己烷用量为9mL,反应时问为60min的优化条件下,丁酮1,2-丙二醇缩酮的产品收率可达84.3%。Butanone 1,2-propanediol ketal was synthesized from butanone and 1,2-propanediol in the presence of H3PW6Mo6O40/TiO2-SiO2.The factors influencing the synthesis were discussed and the best conditions were discovered.The optimum conditions are:molar ratio of butanone to 1,2-propanediol glycol is 1:1.4,the dosage of catalyst is equal to 1.2%of feed stocks,the volume of the water-carrying agent is 9 mL,and the reaction time is 60 minutes.Under these conditions,yield of butanone 1,2-propanediol ketal can reach 84.3%.

关 键 词：丁酮1 2-丙二醇缩酮 磷钨钼酸 催化 

分 类 号：O623.54[理学—有机化学]