| 壳聚糖硫酸盐催化合成尼泊金丁酯 |
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| 引用本文： | 钱运华,金叶玲.壳聚糖硫酸盐催化合成尼泊金丁酯[J].淮阴师范学院学报(自然科学版),2004,3(3):233-235. |
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| 作者姓名： | 钱运华 金叶玲 |
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| 作者单位： | 南京工业大学理学院,应用化学系,江苏,南京,210009;淮阴工学院,化工系,江苏,淮安,223001;淮阴工学院,化工系,江苏,淮安,223001 |
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| 摘 要： | 用壳聚糖硫酸盐作为催化剂合成了尼泊金丁酯,其反应的最佳条件为:酸醇物质的量比为1∶4,催化剂用量为1.2g(0.1mol)对羟基苯甲酸,反应时间4h,产品收率达92.6%.该催化剂催化效果好,酯收率高,污染小,可重复使用.
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| 关 键 词： | 尼泊金丁酯 催化 合成 壳聚糖硫酸盐 |
| 文章编号： | 1671-6876(2004)03-0233-03 |
| 修稿时间： | 2004年3月22日 |
Study on Catalytic Synthesis of Butylparaben by Chitosan Sulfate |
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| QIAN Yun-hua.Study on Catalytic Synthesis of Butylparaben by Chitosan Sulfate[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2004,3(3):233-235. |
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| Authors: | QIAN Yun-hua |
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| Institution: | QIAN Yun-hua~ |
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| Abstract: | The use of chitosan sulfate as catalyst on the synthesis of butylparaben was studied. The suitable conditions have been found. The optimum conditions are follows: the molar ratio of acid to alcohol is 1:4, the weight of catalyst is 1.2?g (0.1?mol) p-hydroxybenzoate and the reaction time is 4?h. The highest yield of butylparaben was 92.6%. Experiment results showed that chitosan sulfate is highly active catalyst for the reaction, with the advantages of little amount used, good esterification, little waste discharge and repetitive use. |
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| Keywords: | butylparaben catalysis synthesis chitosan sulfate |
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