【摘要】 目的　优化对硝基苯甲酸乙酯的合成工艺。方法　以 0 0 9mol乙醇和 0 0 3mol对硝基苯甲酸为原料 ,0 6g硫酸氢钠为催化剂 ,在反应温度 78～ 80℃ ,反应时间 3h条件下合成对硝基苯甲酸乙酯。结果　对硝基苯甲酸乙酯收率达 98% ,硫酸氢钠绝大部分以固体形式存在。结论　硫酸氢钠为催化剂 ,分离方便 ,副反应少 ,催化活性高。更多还原

【Abstract】 Objective: To optimize the preparation of ethyl p-nitrobenzoate. Methods: Ethyl p-nitrobenzoate was synthesized with alcohol 0.09 mol and p-nitrobenzoate acid 0.03 mol as the raw materials, sodium bisulfate 0.6 g acted as the catalyst, with the temperature of reaction at 78～80 ℃, and the time of reaction for 3 h. Results: The yield was over 98%, and most of the sodium bisulfate was in the solid form. Conclusion: Sodium bisulfate as a catalyst is characterized by high activity and less assistant reaction, and can be easily broken down.更多还原