| 硫酸氢钾催化合成尼泊金丁酯 |
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| 引用本文： | 陈丹云,周慧,何建英.硫酸氢钾催化合成尼泊金丁酯[J].食品与发酵工业,2006,32(11):78-79. |
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| 作者姓名： | 陈丹云 周慧 何建英 |
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| 作者单位： | 河南大学化学化工学院,开封,475001 |
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| 基金项目： | 河南省教育厅自然科学基金;河南省教育厅自然科学基金 |
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| 摘 要： | 采用KHSO4为催化剂合成了尼泊金丁酯,考察了催化剂用量、正丁醇与对羟基苯甲酸摩尔比、反应时间、催化剂重复使用次数及带水剂等因素对收率的影响。结果表明:KHSO4具有催化活性高,易分离回收,重复使用性良好等优势。最佳反应条件为:正丁醇与对羟基苯甲酸摩尔比为3∶1,催化剂用量3g,反应时间3h,收率92.9%。
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| 关 键 词： | 尼泊金丁酯 KHSO4 催化 合成 |
| 收稿时间： | 08 30 2006 12:00AM |
| 修稿时间： | 10 26 2006 12:00AM |
Synthesis of Butyl Paraben Catalyzed by Potassium Bisulfate |
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| Chen Danyun,Zhou Hui,He Jianying.Synthesis of Butyl Paraben Catalyzed by Potassium Bisulfate[J].Food and Fermentation Industries,2006,32(11):78-79. |
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| Authors: | Chen Danyun Zhou Hui He Jianying |
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| Affiliation: | Chemistry and Chemical Engineering College of Henan University, Kaifeng 475001 ,China |
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| Abstract: | By using potassium bisulfate as the catalyst,p-hydroxybenzoic acid and n-Butyl alcohol reacted to form butyl paraben.Experimental results showed that this was an efficient,economic and environmental friendly catalyst.The optimum conditions were as follows:molar ratio of n-butanol to p-hydroxybenzoic acid was 3,mass of catalyst was 3g,reaction time was 3h.The yield could reach 92.9%. |
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| Keywords: | KHSO4 |
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