苯甲醛与乙二醇缩醛化反应的研究  

Study of Acetalation Reaction of Benzaldehyde with Glycol

作　　者：李坚利 陈阳如 熊国宣[2] 陈松飞[2] 

机构地区：[1]江西现代学院,江西南昌330012 [2]东华理工学院化学工程与工艺系,江西抚州344000

出　　处：《精细与专用化学品》2006年第18期11-13,共3页Fine and Specialty Chemicals

摘　　要：研究了苯甲醛与乙二醇在732#强酸性阳离子交换树脂催化下的反应条件,得到了缩醛化反应的最佳合成条件为:n(苯甲醛)∶n(乙二醇)=1∶1.75,带水剂用量40mL,催化剂用量1.5g,反应时间90min,并在产物的后处理时采用减压过滤除催化剂和减压蒸馏分离产物的方法。The conditions for reaction of benzaldehyde with glycol catalyzed by 732^# strong acidic cation exchange resin are studied. The optimized conditions are as follows ： n（benzaldehyde） ： n（glycol） = 1 ： 1.75, the amount of the dewatering agent is 40mL, the dosage of catalyst is 1.5g, reaction time is 90 minutes. The strategies, i.e. filtering off catalyst and separating product via distillation under reduced pressure both are adopted during after treatment of the product.

关 键 词：缩醛化 苯甲醛 乙二醇 强酸型阳离子交换树脂 

分 类 号：O621.25[理学—有机化学]