| 磺酸树脂在樟脑肟贝克曼裂解反应中的催化作用 |
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| 引用本文： | 左传鹏,尹笃林,杨拥军,刘贤响,龚妍,毛丽秋.磺酸树脂在樟脑肟贝克曼裂解反应中的催化作用[J].分子催化,2010,24(1). |
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| 作者姓名： | 左传鹏 尹笃林 杨拥军 刘贤响 龚妍 毛丽秋 |
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| 作者单位： | 资源精细化及先进材料湖南省高校重点实验室,湖南师范大学,精细催化合成研究所,湖南,长沙,410081 |
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| 基金项目： | 国家自然科学基金项目(No.20572021,20976043)资助 |
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| 摘 要： | 我们发现以磺酸树脂作为固体酸催化樟脑肟贝克曼裂解反应可以生成α-龙脑烯腈.考察了溶剂、催化剂用量、反应温度和反应时间等对反应的影响.在优化条件下樟脑肟可以完全转化,α-龙脑烯腈选择性高达90.5%.动力学研究表明,樟脑肟在磺酸树脂催化下的贝克曼裂解反应服从准一级动力学模型,经过最小二乘法求得反应的表观活化能为64.6kJ/mol.
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| 关 键 词： | 贝克曼裂解 磺酸树脂 樟脑肟 α-龙脑烯腈 |
Beckmann Fragmentation of Camphor Oxime Catalyzed by Sulfonic Acid Resin |
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| ZUO Chuan-peng,YIN Du-lin,YANG Yong-jun,LIU Xian-xiang,GONG Yan,MAO Li-qiu.Beckmann Fragmentation of Camphor Oxime Catalyzed by Sulfonic Acid Resin[J].Journal of Molecular Catalysis (China),2010,24(1). |
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| Authors: | ZUO Chuan-peng YIN Du-lin YANG Yong-jun LIU Xian-xiang GONG Yan MAO Li-qiu |
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| Institution: | Key Laboratory of Resource Fine-Processing and Advanced Materials;Universities of Hunan Province;Institute of Fine Catalysis and Synthesis;Hunan Normal University;ChangSha 410081;China |
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| Abstract: | The Beckmann fragmentation of camphor oxime to α-campholenonitrile over solid sulfonic acid resin has been successfully performed. The influences of solvent, reaction temperature and reaction time on the fragmentation were examined. The results indicate that the conversion of oxime can reach 100% with 90.5% of selectivity to α-campholenonitrile under optimal reaction conditions. The kinetics show that Beckmann fragmentation of camphor oxime catalyzed by sulfonic acid resin obeys kinetics rule of the pseudo-first order reaction and the activation energy calculated from least square method is 64.6 kJ/mol. |
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| Keywords: | Beckmann fragmentation Sulfonic acid resin Camphor oxime |
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