| 第 34 卷第 3 期 |  | Vol. 34 No. 3 | | 2004 年 6 月 | Jun 2004 |
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所属栏目：其它
氨基磺酸催化合成尼泊金丁酯 |
| 罗一鸣; 曾光尧; 陈建(中南大学化学化工学院; 湖南长沙) |
| 摘 要：采用氨基磺酸作催化剂,以对羟基苯甲酸和正(异)丁醇为原料合成尼泊金(异)丁酯,优惠工艺条件为:0.25mol丁醇,0.05mol对羟基苯甲酸,催化剂氨基磺酸0.5g,过量的醇为带水剂,回流温度下反应3h,丁酯和异丁酯的收率分别可达75.6%和76.3%。产品以红外图谱、熔点、元素分析进行了确证。 |
| 关键词：尼泊金丁酯; 氨基磺酸; 催化剂; 酯化 |
| 中图分类号：TQ225.24 文献标识码：A 文章编号：1009-9212(2004)03-0022-03 |
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| Synthesis of Butyl p-hydroxybenzoate with Aminosulfonic acid as Catalyst |
| LUO Yi-ming; ZENG Guang-yao; CHEN Jian （School of Chemistry & Chemical Engineering; Central South University; Changsha; 410083; China） |
| Abstract：Butyl (isobutyl) p-hydroxybenzoate were synthesized with reaction of p-hydroxybenzoic acid and butanol (isobutano), by aminosulfonic acid as catalyst. The optimum conditions are as followings: the ratio of butanol, p-hydroxybenzoic acid, aminosulfonic acid is 0.25 mol:0.05 mol:0.5 g, reaction for 3 h. The yield is 75.6%(76.3%). The products were characterized by IR, m.p., element. |
| Key words：butyl Nipogin ester; aminosulfonic acid; esterification; catalyst |
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收稿日期：2003-09-15
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