钨硅酸的制备及其在催化合成缩酮(醛)中的应用  

Preparation of H_4SiW_(12)O_(40) and its application in catalytic synthesis of ketal

作　　者：罗玉梅[1] 吕银华[1] 刘江燕[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：《化学研究与应用》2005年第5期615-618,共4页Chemical Research and Application

摘　　要：本文探讨了钨硅酸的制备方法,以合成环己酮1,2-内二醇缩酮为例验证钨硅酸的催化活性,并探讨了合成其它缩酮(醛)的适宜条件,得到的收率分别为:环己酮1,2-丙二醇缩酮85.5%、环己酮乙二醇缩酮89.6%、丁酮乙二醇缩酮79.5%、丁醛乙二醇缩醛89.1%、丁醛1,2丙二醇缩醛81.5%。The method for preparing catalyst H4SiW12O40 was discussed. The catalytic activity of H4SiW1240 was validated in synthesizing cyclohexanone 1,2 -propanediol ketal. In addition ,the reaction conditions in synthesizing the other ketal （acetal） were dis- cussed. The yields of the other products were 85.5% for cydohexanone 1,2 - pnopanediol ketal,89.6% for cyclohexanone ethylene ketal,79.5% for butanone ethylene ketal,89. 1% for N - butyraldehyde ethylene eacetal ,and 81.5% for N-butyraldehyde 1,2 -propanodiol acetal, respectively.

关 键 词：超声波 钨硅酸 环己酮 催化 缩酮 缩醛 

分 类 号：TQ224[化学工程—有机化工] O623.54[理学—有机化学]