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1-萘胺氧化合成1,4-萘醌

张天永,杜晶,李彬*,王晓   

  1. (天津大学化工学院精细化工系 天津 300072)
  • 收稿日期:2012-07-10 修回日期:2012-08-22 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 李彬，讲师; Tel/Fax:022-27406610; E-mail:libin@tju.edu.cn; 研究方向：精细化学品合成
  • 基金资助:
    国家自然科学基金（21103121）和教育部博士点基金（20110032120011）资助项目

Synthesis of 1,4-Naphthoquinone by Oxidation of 1-Naphthylamine

ZHANG Tianyong, DU Jing, LI Bin*, WANG Xiao   

  1. (Department of Fine Chemicals,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
  • Received:2012-07-10 Revised:2012-08-22 Published:2013-05-10 Online:2013-05-10
  • Contact: Bin Li

PDF

2669

被引次数

3

摘要： 研究了在乙酸中，用H2O2氧化1-萘胺合成1,4-萘醌的新方法。 考察了反应温度、反应时间、1-萘胺与H2O2摩尔比、硫酸和H2O2质量分数等因素对产品收率的影响。 得到较优的反应条件为：1-萘胺与H2O2摩尔比为1∶10、H2O2质量分数为5%、硫酸质量分数为45%、反应温度为80 ℃、反应时间为3 h。 在此条件下，1,4-萘醌的收率为52.2%。 该方法具有操作简单、反应时间短和产物易分离等优点。

关键词: 萘胺, 萘醌, H2O2, 氧化

Abstract: A new process was developed to oxidize 1-naphthylamine by H2O2 in acetic acid for preparing 1,4-naphthoquinone. The effects of the reaction temperature, the oxidation time, molar ratio of 1-naphthylamine to H2O2, the concentration of sulfuric acid and the concentration of H2O2 on the product yield were investigated. The optimal reaction conditions for preparing 1,4-naphthoquinone with yield higher than 52.2% are as followings:the molar ratio of 1-naphthylamine to H2O2 is 1∶10, the mass concentration of H2O2 is 5%, the mass concentration of sulfuric acid is 45%, reaction temperature is 80 ℃, and reaction time is 3 h. This method has the advantages such as simplicity, easy separation of the product and short reaction time.

Key words: Napylamine, Naphthoquinone, H2O2, oxidation

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