硫酸铁铵催化合成苯甲醛1,2-丙二醇缩醛  

Synthesis of Benzaldehyde 1,2-Propanediol Acetal Catalyzed with Ammonium Ferric Sulfate

作　　者：杨水金[1] 成鹏翔[1] 白爱民[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》2010年第8期53-55,共3页Advances in Fine Petrochemicals

基　　金：湖北省自然科学基金资助项目(2005ABA053)

摘　　要：以硫酸铁铵为催化剂,苯甲醛和1,2-丙二醇为原料,合成了苯甲醛1,2-丙二醇缩醛。探讨了硫酸铁铵对缩醛反应的催化活性,较系统地研究了醛醇物质的量比、催化剂用量、带水剂用量、反应时间等因素对产物收率的影响,确定了适宜的反应条件:苯甲醛与1,2-丙二醇物质的量比为1:1.5,催化剂用量为反应物料总质量的1.36%,带水剂环己烷的用量为8 mL,反应时间4 h。在上述条件下,苯甲醛1,2-丙二醇缩醛的收率可达83.5%。硫酸铁铵是合成苯甲醛1,2-丙二醇缩醛的良好催化剂。Benzaldehyde 1,2 -propanediol acetal was synthesized from benzaldehyde and 1,2 -propanediol in the presence of ammonium ferric sulfate. The factors influencing the synthesis were discussed and the best conditions were determined as follows： molar ratio of benzaldehyde to 1,2 - propanediol 1 ： 1.5, the quantity of the catalyst equal to 1.36% of feed stocks,cyclohexane as water -carrying agent 8 mL, and the reaction time 4 h. The yield can reach over 83.5% under above conditions. Ammonium ferric sulfate is an excellent eatalyst for synthesis of benzaldehyde 1,2 - propanediol acetal.

关 键 词：苯甲醛1 2-丙二醇缩醛 硫酸铁铵 催化 缩醛化 

分 类 号：TQ244.1[化学工程—有机化工] TQ655