中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (1): 43-46.

• 研究论文 • 上一篇    下一篇

十二烷基苯的硝化选择性

魏运洋, 金铁柱   

  1. 南京理工大学化工学院, 南京 210014
  • 收稿日期:1994-05-10 修回日期:1994-09-20 出版日期:1995-02-10 发布日期:1995-02-10

Orientation of Nitration on Dodecylbenzene

Wei Yunyang, Jing Tiezhu   

  1. Institute of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210014
  • Received:1994-05-10 Revised:1994-09-20 Published:1995-02-10 Online:1995-02-10

PDF

633

被引次数

6 | 3

摘要： 借助气相色谱发现正十二烷基苯在硝硫混酸和硝磷混酸中硝化时,一硝化产物中对位异构体可达60%,较在硝酸乙酸酐中硝化时的对位选择性高10%.利用1H NMR测定了工业十二烷基苯和正十二烷基苯在高浓度硫酸(98%)的硝硫混酸中的硝化选择性,发现前者的硝化产物中对位异构体的含量高达80%.

关键词: 十二烷基苯, 硝化, 选择性

Abstract: It was found by gas chramatography that nitration of n-dedecylbenzene in mixedacid of HNO3-H2SO4 or HNO3-H3PO4 gave a mixture of mononitrated products containing 60% of p-isomer. It was found by NMR measurement that the mixture of mononitrated products from indtistrial dodecylbenzene contained 80%of p-isomer.

Key words: dodeeylbenzene, nitration, orientation

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