阳离子交换树脂催化合成阿魏酸乙酯  

Synthesis of Ethyl Ferulate Catalyzed by Cationic Exchange Resin

作　　者：龚盛昭[1] 李忠军[2] 廖国俊[1] 高晓慧[1] 

机构地区：[1]广东轻工职业技术学院轻化工程系,广东广州510300 [2]中国广州分析测试中心,广东广州510070

出　　处：《精细化工》2010年第4期362-364,373,共4页Fine Chemicals

基　　金：广东省科技计划项目(2007B080701004)~~

摘　　要：以乙醇和阿魏酸为原料,强酸性阳离子交换树脂为催化剂,直接酯化合成了阿魏酸乙酯,考察了树脂类型、催化剂用量、物质的量比、反应时间、催化剂重复使用性等因素对反应的影响。确定了最佳反应条件为:m(树脂)/m(阿魏酸)=0.12,n(乙醇)∶n(阿魏酸)=6∶1,加热回流反应7 h。在最佳反应条件下,阿魏酸转化率为83.4%,产品收率为78.1%。732型树脂催化剂重复使用4次,阿魏酸转化率不低于81%,收率不低于75%。Ethyl ferulate was synthesized from ethanol and ferulic acid by direct esterification using cation exchange resin as catalyst.The effects of resin-type,amount of catalyst,reaction time,material ratio and the repeatability of catalyst on the synthesis were investigated.The optimal reaction conditions were given as follows：m（resin）/m（ferulic acid）=0.12,n（ethanol）∶n（ferulic acid）=6∶1,reflux reaction time 7 h.The yield of product was 83.4% and 78.1% respectively under the above conditions.The conversion rate of ferulic acid and the yield of product were keep greater than 81% and 75% respectively after the 732# resin was used four times.

关 键 词：阿魏酸乙酯 强酸性阳离子交换树脂 催化 

分 类 号：TQ243.2[化学工程—有机化工]