SO_4^(2-)/TiO_2催化合成乙酸环己酯  

Synthesis of Cyclohexyl Acetate Using Solid Superacid Catalyst SO_4^(2-)/TiO_2

作　　者：魏玲[1] 余东[1] 史玉杰[1] 徐洪[1] 仲丽[1] 

机构地区：[1]昌吉学院化学工程系,新疆昌吉831100

出　　处：《化学世界》2005年第8期495-497,共3页Chemical World

摘　　要：以固体超强酸SO24-/TiO2催化乙酸和环乙醇合成了乙酸环己酯。实验确定最佳反应条件为n(乙酸):n(环己醇)=1.0:1.2,SO24-/TiO2用量为乙酸质量的10%,反应时间90min,酯化率达92.3%,并与其它催化剂作了比较,结果表明,以SO42-/TiO2为催化剂,具有催化剂量少、重复使用效果好、反应时间短、酯收率高、方法简单等优点。The synthesis of cyclohexyl acetate by reacting acetic acid with cyclohexanol using SO4^2-/TiO2 as catalyst was studied. The yield of ester was 92.3 % . The optimunm conditions are： molar ratio of acetic acid to cyclohexanol, 1.0：1.2;the amount of catalyst, 10% of the feed stock, and the reaction time, 90min. The experimental results indicate that SO2^2-/TiO2 is an excellent catalyst for synthesizing cyclohexyl acetate with the advantages of smaller quantity, of catalyst,better reusability, shorter reaction time, higher yield of ester and simpler operation method.

关 键 词：乙酸环己酯 SO4^2-/TIO2 酯化 催化 

分 类 号：O621.5[理学—有机化学]