第 37 卷第 1 期 |  | Vol. 37 No. 1 | 2007 年 2 月 | Feb 2007 |
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所屬欄目:醫藥及中間體
3-氯-4-氟硝基苯的微波合成法 |
羅 軍,呂春緒
(南京理工大學(xué) 化工學(xué)院,江蘇 南京 210094) |
摘 要:研究了以3,4-二氯硝基苯為原料通過(guò)鹵素交換氟化合成3-氯-4-氟硝基苯的反應。結果表明,微波加熱條件下反應速率是常規加熱的3~12倍,收率和選擇性也都有提高。金屬Lewis酸AlCl3和SbCl3用作本反應的催化劑可以取得良好的效果,其中SbCl3效果最好,用于400 W微波加熱反應10 min可得到97.0%的收率。 |
關(guān)鍵詞:3,4-二氯硝基苯;3-氯-4-氟硝基苯;微波;氟化;Lewis酸 |
中圖分類(lèi)號:O623.71+2 文獻標識碼:A 文章編號:1009-9212(2007)01- 0030 - 04 |
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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 |
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作者簡(jiǎn)介:羅 軍(1975-),男,四川資中縣人,副研究員,博士,研究方向:有機合成。(E-mail:luojun@mail.njust.edu.cn)
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收稿日期:2006-08-18
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