第 32 卷第 6 期 | | Vol. 32 No. 6 | 2002 年 12 月 | Dec 2002 |
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所属栏目:其它
硫酸氢钠催化合成阿司匹林的研究 |
肖新荣; 刘传湘; 汪敏; 陈蒙慈(南华大学化学化工学院; 湖南海利工程咨询设计有限公司; 湖南衡阳; 421001; 湖南长沙; 410007) |
摘 要:用一水硫酸氢钠为催化剂由水杨酸与乙酐酯化合成阿司匹林。研究了酯化反应的优化条件 ,结果表明 :硫酸氢钠与浓硫酸催化合成阿司匹林的催化效果相当 ,但操作安全 ,极少有碳酸氢钠的不溶副产物产生 ,产品呈纯白结晶 ,且硫酸氢钠难溶于有机溶剂 ,易于分离回收 ,可重复使用 |
关键词:阿司匹林; 硫酸氢钠; 催化; 合成 |
中图分类号: 文献标识码: 文章编号:1009-9212(2002)06-0042-02 |
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Synthesis of Aspirin with Sodium Bisulfate Catalyst |
XIAO Xin-rong; et al. ( Chemistry and Chemical Engineering College; Nan hua University; heng young; 421001; China) |
Abstract:Aspirin was synthesized from salicylic acid and acetic anhydride by sodium bisulfat as catalyst. The result shew that sodium bisulfate can be used as catalyst for the synthesis instead of concentrated acid sulfate. The yield little unsoluble product of sodium bicarbonate with sodium bisulfate being used as catalyst for the synthesis of aspirin, sodium bisulfate may be used repeatedly as catalyst. |
Key words:aspirin; sodium bisulfate; cat; synthesis |
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收稿日期:2002-08-23
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