| 三缺位Keggin型磷钨杂多酸盐高选择性催化氧化环己烯 |
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| 引用本文： | 安文佳,许林.三缺位Keggin型磷钨杂多酸盐高选择性催化氧化环己烯[J].高等学校化学学报,2011,32(3):783-786. |
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| 作者姓名： | 安文佳 许林 |
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| 作者单位： | 1. 东北师范大学化学学院, 多酸化学研究所, 长春 130024;
2. 番禺出入境检验检疫局, 番禺 511400 |
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| 摘 要： | 利用三缺位Keggin型杂多酸A-α-PW9O34]9-和(FeШ(OH2)2)3(A-α-PW9O34)2]9-的四丁基铵盐做为催化剂，H2O2做为氧化剂催化环己烯氧化反应. 考察了反应时间、H2O2与环己烯的摩尔比，催化剂的用量等因素对反应结果的影响. 结果表明：在1, 2-二氯乙烷为10 mL，H2O2 (30 %)与环己烯的摩尔比为2，反应温度为35 oC，反应时间为6 h，(C4H9)4N]9A-α-PW9O34]为催化剂的条件下，环己烯氧化反应的转化率为55 %，主要产物是环氧环己烷，其选择性 ≥ 99 %；而以(C4H9)4N]9(FeШ(OH2)2)3(A-α-PW9O34)2]为催化剂时环己烯氧化反应的转化率17 %，主要产物是2-环己烯-1-酮，选择性 ≥ 99 %.
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| 关 键 词： | 环己烯 氧化 三缺位Keggin型杂多酸 反应控制相转移 |
| 收稿时间： | 2010-10-18 |
Highly Selective Oxidation of Cyclohexene via Trivacant Keggin-type Phosphotungstate as Catalysts |
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| AN Wen-Jia,XU Lin.Highly Selective Oxidation of Cyclohexene via Trivacant Keggin-type Phosphotungstate as Catalysts[J].Chemical Research In Chinese Universities,2011,32(3):783-786. |
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| Authors: | AN Wen-Jia XU Lin |
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| Institution: | 1. Institute of Polyoxometalate Chemistry, Department of Chemistry, Northeast Normal University, Changchun 130024, China;
2. Panyu Entry\|Exit Inspection Quarantine, Panyu 511400, China |
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| Abstract: | The oxidation of cyclohexene with 30% hydrogen peroxide was catalyzed by trivacant Keggin-type polyoxometalates tetra-butylammonium salts A-α-PW9O34]9- and (FeШ(OH2)2)3(A-α-PW9O34)2]9-. The effects of reaction conditions such as molar ratio of cyclohexene to H2O2 , reaction time and catalyst amount on the catalyst activity were investigated. The catalyst (C4H9)4N]9A-α-PW9O34] showed a high selectivity (≥ 99 % ) for cyclohexene oxide with the cyclohexene conversion of 55 %. The catalyst (C4H9)4N]9(FeШ(OH2)2)3(A-α-PW9O34)2] showed a cyclohexene conversion of 17 % and a 2-cyclohexene-1-one selectivity of 99 % . |
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| Keywords: | cyclohexene oxidation trivacant Keggin-type Polyoxometalate reaction-controlled phase transfer |
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