四氯化锡催化合成乙酸异丁酯

Catalytic Synthesis of Isobutyl Acetate by SnCl_4·5H_2O

以四氯化锡 (SnCl4 ·5H2 O)为催化剂 ,由冰乙酸和异丁醇合成乙酸异丁酯。在冰乙酸与异丁醇摩尔比为 1∶1.2 ,催化剂用量为反应物总质量的 1 5 % ,反应温度 95℃、反应时间 90min的条件下 ,酯化率可达 87 5 % ,产品纯度大于 98%。

SnCl 4·5H 2O was used as the catalyst for preparing isobutyl acetate from acetic acid and isobutyl alcohol.The optimum conditions were determined as follows: molar ratio of acetic acid to isobutyl alcohol of 1∶1 2, catalyst amount of 1 5% on the total mass of reactants, temperature of 95 ℃ and reaction time of 90 min .The conversion of acrylic acid was 87 5%,the purity of the product was over 98%.