第 39 卷第 2 期 | | Vol. 39 No. 2 | 2009 年 4 月 | Apr 2009 |
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所属栏目:医药及中间体
5-氟-2-羟基苯乙酮的制备 |
余卫国,史海波,赵向奎
(浙江医药高等专科学校 浙江 宁波 315100) |
摘 要:以对氨基苯酚为原料,一步进行氨基与酚羟基的双重酯化,三氯化铝/氯化钠条件下进行Fries重排,水解产物进行氟重氮化后加热得5-氟-2-羟基苯乙酮成品。原料廉价,反应条件相对温和,总收率可达54.5%,具有工业生产应用价值。 |
关键词:5-氟-2-羟基苯乙酮;对氨基苯酚;Fries重排;氟重氮化 |
中图分类号:O621.3 文献标识码:A 文章编号:1009-9212(2009)02- 0044-03 |
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Improvement on the Prepartion of 5-Fluoro-2-hydroxyacetophenone |
YU Wei-guo,SHI Hai-bo,ZHAO Xiang-kui
(Zhejiang Pharmaceutical College,Ningbo,315100,China) |
Abstract:5-Fluoro-2-hydroxyacetophenone was prepared from p-aminophenol in an overall yield of 54.5%. In the first step, both groups of amino and hydroxyl in p-aminophenol were esterificated in one step, followed by Fries rearrangement in the presence of AlCl3/NaCl. The product was then hydrolyzed and fluorin diazotized to give the title product. |
Key words:5-fluoro-2-hydroxyacetophenone;p-aminaphenol;Fries rearrangement;fluorine diazotization |
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基金项目:浙江医药高等专科学校校级科研项目资助(ZPCSR2006005)。
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作者简介:余卫国(1974-),男,湖北大悟人,硕士研究生,从事药物及药物中间体的合成研究。(E-mail:gdywg@163.com)
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收稿日期: 2009-03-2
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