SO_4^(2-)/TiO_2-WO_3催化合成苯甲醛1,2-丙二醇缩醛(英文)  

Synthesis of benzaldehyde 1,2-propanediol acetal catalyzed by SO_4^(2-)/TiO_2-WO_3 solid superacid

作　　者：吕宝兰[1] 夏佳[1] 杨水金[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：《宝鸡文理学院学报（自然科学版）》2004年第2期110-112,124,共4页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：Supported by the Natural Science Foundation of Hubei Education Com mittee (No.2 0 0 2 A0 0 0 0 8)

摘　　要：报道了以SO2-4/TiO2-WO3为催化剂,对以苯甲醛和1,2-丙二醇为原料合成苯甲醛1,2-丙二醇缩醛的反应条件进行了研究。实验结果表明,SO2-4/TiO2-WO3具有良好的催化活性,最佳反应条件为:苯甲醛与1,2-丙二醇物质的量比为1∶1.25,催化剂的用量为反应物料总量的0.50%,反应时间50min,上述条件下,苯甲醛1,2-丙二醇缩醛的产率为81.7%。Benzaldehyde 1,2-propanediol acetal was synthesized from benzaldehyde and 1,2-propanediol in the presence of SO^(2-)_4/TiO_2-WO_3. The factors influencing the synthesis were discussed and the best conditions were found out. The optimum conditions are: molar ratio of benzaldehyde to 1,2-propanediol is 1∶1.25, the quantity of catalyst is equal to 0.50% feed stock, and the reaction time is 50 min. SO^(2-)_4/TiO_2-WO_3 is an excellent catalyst for synthesizing benzaldehyde 1,2-propanediol acetal and its yield can reach over 81.7%.

关 键 词：苯甲醛1 2-丙二醇缩醛 SO^2-4/TiO2-WO3催化 缩醛化 

分 类 号：TQ426.64[化学工程] TQ413.26