| 草酸对磷钨酸催化氧化环己烯合成己二酸的影响 |
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| 引用本文： | 李惠云,陈志强,王绍梅,张有娟,郭金福.草酸对磷钨酸催化氧化环己烯合成己二酸的影响[J].河南师范大学学报(自然科学版),2005,33(2):136-138. |
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| 作者姓名： | 李惠云 陈志强 王绍梅 张有娟 郭金福 |
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| 作者单位： | 安阳师范学院,化学系,河南,安阳,455002 |
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| 基金项目： | 安阳师范学院物理化学重点学科资助课题 |
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| 摘 要： | 报道了在无相转移剂条件下,用磷钨酸催化过氧化氢氧化环己烯合成己二酸,收率最高为72.6%.草酸的加入使己二酸产率明显提高,在优化条件下即反应物摩尔比为环己烯∶过氧化氢∶磷钨酸∶草酸=1∶4.0∶0.002∶0.0315时,80℃反应8h收率可达87.7%.这与草酸的配体效应有关.该方法避免了昂贵且有毒的相转移剂的使用.
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| 关 键 词： | 磷钨酸 草酸 过氧化氢 环己烯 己二酸 |
| 文章编号： | 1000-2367(2005)02-0136-03 |
| 修稿时间： | 2004年9月25日 |
The Effect of Oxalic Acid to Catalytic Oxidation of Cyclohexene to Adipic Acid with Phosphotungstic Acid |
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| LI Hui-yun,CHEN Zhi-qiang,WANG Shao-mei,ZHANG You-juan,GUO Jin-fu.The Effect of Oxalic Acid to Catalytic Oxidation of Cyclohexene to Adipic Acid with Phosphotungstic Acid[J].Journal of Henan Normal University(Natural Science),2005,33(2):136-138. |
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| Authors: | LI Hui-yun CHEN Zhi-qiang WANG Shao-mei ZHANG You-juan GUO Jin-fu |
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| Abstract: | Cyclohexene can be directly oxidized to adipic acid with 30% H_2O_2 in the presence of H_7P(W_2O_7)_6]·xH_2O without any phase transfer catalyst and organic solvents. The yield of adipic acid is 72.6%. In this work, when using oxalic acid as ligand and H_7P(W_2O_7)_6]·xH_2O as catalyst at 80 ℃,87.7%yield of adipic acid can be reached under molar ratio C_6H_ 10∶H_2O_2∶H_7P(W_2O_7)_6]·xH_2O∶C_4H_6O_4=1∶4.0∶0.002∶0.031 5. It is demonstrated that the coordination effect of ligand plays the important role in catalytic oxidation of cyclohexene. |
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| Keywords: | phosphotungstic acid oxalic acid H_2O_2 cyclohexene adipic acid |
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