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SO42-/WO3-ZrO2催化剂上硝基氯苯的区域选择性合成研究
Study on Regioselective Synthesis of Mononitrochlorobenzene on SO42-/WO3-ZrO2 Catalysts
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中文摘要:
      制备了一系列钨锆原子比不同的SO42-/WO3-ZrO2固体酸催化剂,并对其进行了表征; 研究了WO3的不同含量和不同焙烧温度条件下制备的催化剂对硝酸硝化氯苯的区域选择性。结果表明: 在醋酐存在下,600℃焙烧的SO42-/WO3-ZrO2(0.15)催化剂催化下,氯苯与等物质的量的硝酸反应,其产物具有强对位选择性,氯苯一硝化产物中邻/对硝基氯苯异构体的质量比达0.30,产物得率可达55.8%。该反应快速,并将对硝基化合物的绿色合成产生极其重要的影响。
中文关键词: SO42-/WO3-ZrO2  氯苯  选择性合成  催化硝化
英文摘要:
      A series of solid superacid catalyst of SO42-/WO3-ZrO2 containing different ratio of WO3 and ZrO2 have been prepared and characterized; regioselectivities of chlorobenzene mononitration with nitric acid, on these catalysts having different WO3 content and calcination temperature, were investigated. Experiments show that chlorobenzene is nitrated with high para-selectivity at present of acetic anhydride using SO42-/WO3-ZrO2 by a calcination step for 3 h at 600 ℃ as catalyst and a stoichiometric quantity of nitric acid. Nitration of chlorobenzene gives a 55.8% yield of mononitro compounds, and an ortho-para isomer ratio 0.30 in product distribution of chlorobenzene mononitration. The process is rapid, and represents an attractive method for green synthesis of nitroaromatic compounds.
英文关键词: SO42-/WO3-ZrO2  chlorobenzene  regioselective synthesis  catalytic nitration
投稿日期:2002-07-18
网络出版日期:2011-11-03
基金项目:江苏省自然科学基金(BK99071)和南京理工大学科研发展基金资助
引用文献:程广斌,吕春绪.SO42-/WO3-ZrO2催化剂上硝基氯苯的区域选择性合成研究[J].含能材料,2002,10(4):168~170.CHENG Guang-bin,Lü Chun-xu. Study on Regioselective Synthesis of Mononitrochlorobenzene on SO42-/WO3-ZrO2 Catalysts[J]. Chinese Journal of Energetic Materials(Hanneng Cailiao),2002,10(4):168-170.
作者单位
程广斌 南京理工大学化工学院江苏 南京 210094 
吕春绪 南京理工大学化工学院江苏 南京 210094 
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