| 第 35 卷第 3 期 |  | Vol. 35 No. 3 | | 2005 年 6 月 | Jun 2005 |
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所属栏目：其它
氨基磺酸催化合成氯乙酸正丁酯 |
| 胡胜利; 郑静(湖北师范学院化学与环境工程系; 湖北黄石) |
| 摘 要：以氨基磺酸作催化剂,通过氯乙酸和正丁醇反应合成了氯乙酸正酯,并探讨了诸因素对收率的影响.实验表明:氨基磺酸具有良好的催化活性,当醇酸配比为1.4∶1(mol),催化剂用量约为氯乙酸质量的2.5%,甲苯为带水剂,反应时间2.5 h,反应温度130~139℃,酯收率可达86.1%.且催化剂可重复使用。 |
| 关键词：氨基磺酸; 催化; 氯乙酸正丁酯 |
| 中图分类号：O623 文献标识码：A 文章编号：1009-9212(2005)03-0035-02 |
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| Synthesis of n-Butyl Chloroacetate Catalyzed by Sulfamic Acid |
| HU Sheng-li*; ZHENG Jing （Department of Chmistry and Environmental; Hubei Normal University; Huangshi 435002; China） |
| Abstract：n-Butyl chloroacetate was synthesized from chloroacetic acid and n-butanol in the presence of sulfamic acid used as catalyst. Experimental results showed that the yield of the ester could reach 86.1% when the mole ratio of n-butanol and was chloroacetic acid 1.4∶1, the amount of sulfamic acid used was 2.5% of the acid, reaction time was 2.5 h, and temperature was 130～139℃,demonstrating that sulfamic acid had good catalytic activity on synthesis of n-butyl chloroacetate, and the catalyst could be reused. |
| Key words：Sulfamic acid; catalysis; n-butyl chloroacetate |
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收稿日期：2004-11-13
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