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甲苯的氟两相硝化反应研究(Ⅰ)
Nitration of Toluene with Fluorous Biphasic System
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中文摘要:
      以全氟萘烷(C10F18)为氟溶剂,全氟辛基磺酸镱(Yb(OSO2C8F173)为催化剂,对甲苯进行了氟两相硝化。含有催化剂的氟相通过简单的相分离,就可回收利用,p/o值(产物中对位和邻位异构体的重量比)可提高至0.92。
中文关键词: 有机化学  氟两相硝化  全氟萘烷  全氟辛基磺酸镱  甲苯  异构体
英文摘要:
      Toluene was nitrated effectively in fluorous phase in the presence of ytterbium(Ⅲ) perfluorooctanesulfonate(Yb(OSO2C8F173) catalyst. Perfluorodecalin(C10F18) was used as a fluorous solvent for this reaction. By simple separation,the fluorous phase containing catalyst has been recovered and reused for a number of times,p/o ( ratio of p-isomer to o- isomer) of the nitration product was increased to 0.92. Effects of reaction temperature,the ratio of VPFC/Vorganic solvent and the water in the reaction system on the nitration were investigated. It was observed that the optimum temperature for fluorous biphasic nitration of toluene was 80 ℃. Simultaneously,increasing the ratio of VPFC/Vorganic solvent can enhance p/o ratio.
英文关键词: organic chemistry  nitration with fluorous biphasic system  perfluorodecalin  ytterbium(Ⅲ) perfluorooctanesulfonat  toluene  isomer
投稿日期:2004-06-25
网络出版日期:2011-11-03
基金项目:国防科工委“十五”预研项目,编号:40406020103
引用文献:易文斌,蔡春.甲苯的氟两相硝化反应研究(Ⅰ)[J].含能材料,2005,13(1):52~54.YI Wen-bin,CAI Chun. Nitration of Toluene with Fluorous Biphasic System[J]. Chinese Journal of Energetic Materials(Hanneng Cailiao),2005,13(1):52-54.
作者单位
易文斌 南京理工大学化工学院 江苏 南京 210094 
蔡春 南京理工大学化工学院 江苏 南京 210094 
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