| Al2O3-SiO2催化环己胺氧化制备环己酮肟 |
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| 引用本文： | 高美香,罗东,毛丽秋,尹笃林.Al2O3-SiO2催化环己胺氧化制备环己酮肟[J].应用化学,2013,30(1):28-31. |
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| 作者姓名： | 高美香 罗东 毛丽秋 尹笃林 |
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| 作者单位： | (湖南师范大学精细催化合成研究所 长沙 410081) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 以Al2O3-SiO2为催化剂,用双氧水氧化环己胺制备了环己酮肟。考察了溶剂用量、催化剂用量、反应时间和反应温度等因素对催化性能的影响。结果表明,在溶剂乙腈与环己胺体积比为3∶1,催化剂质量分数31.0%,75℃反应5 h后的环己胺转化率为100%,环己酮肟选择性可达83.6%。并对环己胺催化氧化的反应机理作了初步的探讨。
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| 关 键 词： | 环己胺 氧化 环己酮肟 |
| 收稿时间： | 2012-03-01 |
| 修稿时间： | 2012-05-08 |
Oxidation of Cyclohexylamine to Cyclohexanone Oxime Catalyzed by Al2O3-SiO2 |
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| GAO Meixiang
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LUO Dong
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MAO Liqiu
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YIN Dulin.Oxidation of Cyclohexylamine to Cyclohexanone Oxime Catalyzed by Al2O3-SiO2[J].Chinese Journal of Applied Chemistry,2013,30(1):28-31. |
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| Authors: | GAO Meixiang LUO Dong MAO Liqiu YIN Dulin |
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| Institution: | (Institute of Fine Catalysis and Synthesis,Hunan Normal University,Changsha 410081,China) |
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| Abstract: | The oxidation of cyclohexylamine catalyzed by Al2O3-SiO2 catalyst was carried out under mild conditions. The effects of solvent amount, catalyst amount, reaction time and reaction temperature on the reaction were investigated. Under the conditions of V(acetonitrile)∶V(cyclohexylamine)=3∶1, 31.0% mass fraction of catalyst, reaction temperature of 75 ℃, and reaction time of 5 h, the conversion of cyclohexylamine reaches up to 100% and the selectivity for cyclohexanone oxime is 83.6%. A reaction mechanism is proposed. |
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| Keywords: | cyclohexylamine oxidation cyclohexanone oxime |
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