SO_4^(2-)/TiO_2-MoO_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-MoO_3 solid superacid

作　　者：杨水金[1] 余建勇[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：《信阳师范学院学报（自然科学版）》2005年第1期83-85,91,共4页Journal of Xinyang Normal University(Natural Science Edition)

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

摘　　要：报道了以 SO42 -/Ti O2 -Mo O3 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 .结果表明 ,SO42 -/Ti O2 - Mo O3 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 .1 ,催化剂的用量为反应物料总量的 0 .2 5 % ,反应时间 5 0 min,上述条件下 ,苯甲醛 1 ,2 -丙二醇缩醛的产率为 77.3% .Benzaldehyde 1,2-propanediol acetal was synthesized from benzaldehyde and 1,2-propanediol in the presence of SO_4^(2-)/TiO_2-MoO_3. The factors influencing the synthesis were discussed and the optimal conditions were found out. The optimum conditions are: molar ratio of benzaldehyde to 1,2-propanediol is 1∶1.1, the quantity of catalyst is equal to 0.25% feed stock, and the reaction time is 50 min. SO_4^(2-)/TiO_2-MoO_3 is an excellent catalyst for synthesizing benzaldehyde 1,2-propanediol acetal and its yield can reach over( 77.3%.)

关 键 词：苯甲醛1 2-丙二醇缩醛 SO4^2-/TiO2-MoO3 催化 缩醛化 

分 类 号：TQ426.91[化学工程] TQ655