第 37 卷第 1 期 | | Vol. 37 No. 1 | 2007 年 2 月 | Feb 2007 |
|
所属栏目:医药及中间体
3-氯-4-氟硝基苯的微波合成法 |
罗 军,吕春绪
(南京理工大学 化工学院,江苏 南京 210094) |
摘 要:研究了以3,4-二氯硝基苯为原料通过卤素交换氟化合成3-氯-4-氟硝基苯的反应。结果表明,微波加热条件下反应速率是常规加热的3~12倍,收率和选择性也都有提高。金属Lewis酸AlCl3和SbCl3用作本反应的催化剂可以取得良好的效果,其中SbCl3效果最好,用于400 W微波加热反应10 min可得到97.0%的收率。 |
关键词:3,4-二氯硝基苯;3-氯-4-氟硝基苯;微波;氟化;Lewis酸 |
中图分类号:O623.71+2 文献标识码:A 文章编号:1009-9212(2007)01- 0030 - 04 |
|
Synthesis of 3-Chloro-4-fluoronitrobenzene Promoted by Microwave Irradiation |
LUO Jun,L?譈 Chun-xu
(School of Chemical Engineering,Nanjing University of Science and Technology,Nanijng 210094,China) |
Abstract:3-Chloro-4-fluoronitrobenzene was prepared from 3,4-dichloronitrobenzene through halogen-exchange fluorination. The reaction rate under microwave heating was 3~12 times higher than that under conventional heating, and the yield and selectivity increased as well. AlCl3 and SbCl3 were applied in this reaction to give excellent results. The best result was obtained in a high yield of 97.0% when 400 W microwaves were used for 10 min. |
Key words:3,4-dichloronitrobenzene;3-chloro-4-fluoronitrobenzene;microwave;fluorination;Lewis acid |
|
作者简介:罗 军(1975-),男,四川资中县人,副研究员,博士,研究方向:有机合成。(E-mail:luojun@mail.njust.edu.cn)
|
收稿日期:2006-08-18
|
阅读全文 |
|