固体酸SO_4^(2-)/TiO_2/Fe_3O_4催化合成D-酒石酸正辛酯  

Synthesis of N-octyl D-tartrate

作　　者：张弘[1] 胡巨坤[1] 张鑫[1] 孙秋梅[1] 张继艳[1] 张首才[1] 

机构地区：[1]吉林师范大学化学学院,吉林四平136000

出　　处：《广东化工》2009年第7期33-33,67,共2页Guangdong Chemical Industry

摘　　要：文章用固体酸SO42-/TiO2/Fe3O4催化合成了D-酒石酸正辛酯,其结构经过IR确证。通过实验得优化反应条件为:n(D-酒石酸)︰n(正辛醇)=1︰2.8,SO42-/TiO2/Fe3O40.6g,环己烷25mL,快速搅拌,酯化率95%,收率90%。A chiral resolving reagent n-octyal D-tartrate was prepared from D-tartarie acid and n-octanol using p-toluene sulfonic acid and toluene as a catalyst and solvent by SO4^2-/TiO2/Fe3O4. The structure was confirmed by IR. The effect of molar ratio of reactants, amount of solvent and catalyst and stir speed on the yield were discussed by test. The optimum reaction conditions were as follows： the molar ratio of D-tartarc acid and n-octanol at 1 ： 2.8, TiO2/Fe3O4 at 0.6 g, n-Hexane at 25 mL, and stirring at fast speed.Under the optimum eondion the yield of n-octyl D-tartrate was about 95 % and the esterification was over 90 %.

关 键 词：酒石酸 正辛醇 催化剂 酯化 

分 类 号：TQ[化学工程]