1,3;2,4—二亚苄基山梨醇的合成工艺研究  

Study on Process for Synthesis of Dibenzylidene Sorbitol(DBS)

作　　者：陈向明[1] 陈河如[1] 王建榕[1] 徐红柳[1] 

机构地区：[1]汕头大学理学院化学系,广东汕头515063

出　　处：《广东化工》2005年第11期48-49,75,共3页Guangdong Chemical Industry

摘　　要：以山梨醇和苯甲醛为原料,对甲基苯磺酸为催化剂进行反应制得1,3;2,4-二亚苄基山梨醇(DBS).考察了醛醇比、催化剂用量、环己烷用量对反应的影响.结果发现,在本实验条件下,当苯甲醛和山梨醇的重量比为1.8～2.0,甲基苯磺酸(TAS)催化剂和环己烷用量分别为0.75%～1%、55%～60%时,DBS收率可达75%以上.Dibenzylidene sorhitol （DBS） was synthesized by applying sorbitol and benzaldehyde as starting materials, toluenesulfonic acid （TSA） as catalyst. Effects of the weight ratio of aldehyde and alcohol, quantity of catalyst and cyclohexane on the reaction have been investigated. It was shown that when the weight ratio of benzladehyde and sorbitol was in the range of 1. 8 to 2.0, quantity of toluenesulfonic acid and cyclohaxane used in the reaction was 0.75% - 1.0% , 55% -60% , the yield of DBS could be higher than 75%.

关 键 词：1 3 2 4-二亚苄基山梨醇 山梨醇 苯甲醛 合成工艺 二亚苄基山梨醇 工艺研究 催化剂用量 对甲基苯磺酸 合成 苯甲醛 实验条件 环己烷 重量比 

分 类 号：TQ223.166[化学工程—有机化工] TQ461