新型铁系催化剂的制备及其催化合成苹果酯的研究  

Preparation and catalytic activity of ferric solid-acid in synthesizing fructone

作　　者：朱万仁[1] 李家贵[1] 

机构地区：[1]玉林师范学院化学与生物系,玉林537000

出　　处：《化学试剂》2003年第2期111-112,118,共3页Chemical Reagents

摘　　要：报道用自制新型铁系催化剂-黄铁矾固体酸催化剂催化合成苹果酯的方法。研究了合成苹果酯的各种合成因素的影响,找出最佳酯化条件,即乙酰乙酸乙酯与乙二醇投料比为1:3,催化剂的用量为乙酰乙酸乙酯质量的6％,回流时间为2.5h,使合成苹果酯产率达到90.8％。Fructone has been synthesized from ethyl aceto-acetate and ethylene glycol with ferric solid-acid as the catalyst. The factors affecting the reaction have been studied. The optimal esterifying conditions were found out,the molar ratio was about one(ethyl acetoacetate)to 3. 0(eth-ylene glycol), the catalyst weight quantity was 6% (cat. / ethyl acetoacetate) and the reflux time was 2. 5h. The yield was up to 90. 8%.

关 键 词：苹果酯 铁系催化剂 制备 催化合成 合成香料 乙酰乙酸乙酯 乙二醇 

分 类 号：TQ655[化学工程—精细化工] TQ426.8