稀土固体超强酸SO_4^(2-)/TiO_2/La^(3+) 催化合成己酸烯丙酯

The Catalytic Synthesis of Allyl Hexanoate by SO_4^(2-)/TiO_2/La^(3+) Rare Earth Solid Superacid

研究了以稀土固体超强酸ＳＯ２－４／ＴｉＯ２／Ｌａ３＋为催化剂、己酸和烯丙醇为原料合成己酸烯丙酯，并考察了影响反应的因素．结果表明，醇酸比为２．０：１，催化剂用量为０．８８（己酸为０．２ｍｏｌ的情况下），带水剂甲苯为２０ｍＬ，反应时间为２．０ｈ是最适宜的反应条件，酯化率达９６．２％．

The synthesis of allyl hexanoate with allyl alcohol and hexanic acid as reactants and rare earth solid superacid SO2-4/TiO2/La3+ as catalyst had been studied. The influent actors of reaction were investigated. The results showed that the appropriate conditions should be: weight of catalyst was 0. 8g(weight of hexanic acid if 0. 2 mol) ,molar ratio of allyl alcohol to hexanic acid was 2.0 :1,reaction time was 2. 0 h .the taking water reagent (toluene)was 20 mL. The yield of allyl hexanoate was about 96.2%.