杯[4]芳烃磺酸钠催化合成乙酸正丁酯

以杯[4]芳烃磺酸钠为催化剂,以乙酸与正丁醇为原料,通过酯化反应合成乙酸正丁酯,考察了催化剂用量、原料配比和反应时间对酯化反应的影响,产品进行折光指数检测。结果表明,杯[4]芳烃磺酸钠作为催化剂,乙酸物质的量为0.1mol,醇酸物质的量比为1.2,催化剂质量为1g,反应时间为4h时,酯化率可达81.41%,杯[4]芳烃磺酸钠可以重复使用多次。

Synthesis of n-Butyl Acetate Using Calix[-4-]arene Sulfonic Acid Sodium as a Catalyst

Calix[4]arene Sulfonic Acid Sodium was used as a non homogenous catalyst for synthesis of n-Butyl acetate using acetic acid and n-butyl alcohol as raw materials. The effects of reaction conditions, such as the quantity of catalyst, the ratio of the reactants and reaction time were discussed respectively. The product was characterized by index of refraction. The suitable conditions for the reaction were as follows： acetic acid 0.1 tool, molar ratio of n-butyl alcohol to acetic acid 1.2, catalyst amout 1 g, reaction time 4 h, the yield of n-butyl acetate can reach 81.41%. The catalyst could be used repeatedly keeping its initial activity.