强酸性阳离子交换树脂催化合成苯乙醛1,2-丙二醇缩醛  

Synthesis of Phenylacetaldehyde 1,2-Propanediol Acetal Catalyzed by Strong Acidic Cation Exchange Resin

作　　者：李建华[1] 施磊[1] 

机构地区：[1]南通大学化学化工学院,南通226007

出　　处：《精细石油化工进展》2008年第6期7-10,共4页Advances in Fine Petrochemicals

摘　　要：采用强酸性阳离子交换树脂作催化剂,以苯乙醛、1,2-丙二醇为原料合成了苯乙醛1,2-丙二醇缩醛。研究了带水剂种类和用量、催化剂用量、原料配比和反应时间等因素对产物收率的影响,得到了合成苯乙醛1,2-丙二醇缩醛最适宜的条件:苯乙醛与1,2-丙二醇摩尔比1:1.3、带水剂环己烷用量(苯乙醛为0.10 mol的情况下)40 mL、催化剂用量为总物料质量的2.7%、反应时间4 h、反应温度105℃。在此条件下,苯乙醛1,2-丙二醇缩醛的收率为95.16%,产物纯度高达99.0%。该催化剂重复使用性能良好。Phenylacetaldehyde 1,2 - propanediol acetal was synthesized from phenylacetaldehyde and 1,2 - propanediol using strong acidic cation exchange resin as catalyst. The factors influencing the yield of the product were discussed and the proper conditions were obtained as follows ： molar ratio of phenylacetaldehyde to 1, 2 - propanediol 1 ： 1.3, amount of water - carrying agent cyclohexane 40 mL （ based on phenylacetaldehyde 0.10 mol）, amount of catalyst 2.7% （based on the mass of total reactants）, reaction time 8 h, and reaction temperature 105 ℃. The yield and purity of the product was 95.16% and 99.0% separately under above conditions. The catalyst could be used repeatedly without any treatment.

关 键 词：苯乙醛1 2-丙二醇缩醛 强酸性阳离子交换树脂 催化剂 缩醛反应 

分 类 号：TQ224.1[化学工程—有机化工]