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:用 1 萘乙酸和甲醇为原料 ,浓硫酸做催化剂 ,采用蒸馏分水工艺 ,在微正压下合成 1 萘乙酸甲酯。讨论了催化剂用量、反应时间、反应温度、醇酸比等因素对反应的影响。最适宜反应条件为 :n(甲醇 )∶n( 1 萘乙酸 ) =9∶1,催化剂用量为 1 萘乙酸质量的 8%、反应时间 10 0min、反应温度为回流温度 ,产品收率为 92 4%。经沸点测定、折光率测定和红外光谱分析予以确证
: 1 naphthalene acetic acid and methanol as raw materials, concentrated sulfuric acid as a catalyst, the use of distillation and water separation process, synthesis of methyl 1 naphthylacetate at a slight positive pressure. The effects of catalyst amount, reaction time, reaction temperature, alkyd ratio and other factors on the reaction were discussed. The optimal reaction conditions were as follows: n (methanol): n (1 naphthalene acetic acid) = 9:1, the amount of catalyst was 1% naphthalene acetic acid 8%, the reaction time was 10 min, the reaction temperature was reflux temperature, the yield was 92 4 %. The boiling point determination, refractive index and infrared spectroscopy to confirm