第 34 卷第 3 期Vol. 34 No. 3
2004 年 6 月Jun 2004

所属栏目:其它

2,3,4-三氟硝基苯的合成
徐天有; 姚方; 陈爱调; 黄崇跑(浙江工业大学浙西分校化工系; 浙江衢州)
摘 要:以2,6 二氯氟苯为原料在无水Na2SO4作用下与HNO3/H2SO4在50~55℃下反应2h,得到2,6 二氯 3 硝基氟苯;再在DMF溶剂中有季铵盐相转移催化剂存在下与无水氟化钾在160~165℃反应7h,得到2,3,4 三氟硝基苯,收率约为83%。
关键词:2; 6-二氯氟苯; 硝化; 氟化; 3; 4-三氟硝基苯
中图分类号:TQ246.1+2  文献标识码:A  文章编号:1009-9212(2004)03-0042-02
The Synthesis of 2,3,4-Trifluoronitrobenzene
XU Tian-you; YAO Fang; CHEN Ai-tiao; HUANG Chong-pao (Zhejiang University of Technology Westbranch; Quzhou 324006; China)
Abstract:2,3,4-Trifluoronitrobenzene was synthesized from 2,6-dichlorofluorobenzene through two steps:①nitration in the presence of anhydrous Na_2SO_4 with the formation of 2,6-dichloro-3-nitroluorobenzene;②fluorination by reaction with anhydrous KF in the presence of DMF and quaternary ammonium salt at 160~165 ℃ to give the titled product, the yield of fluorination is about 83%.
Key words:2; 6-dichiorofluorobenzene; nitration; fluorination; 3; 4-trifluoronitrobenzene
收稿日期:2003-12-08
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