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6,7-二甲氧基香豆素的合成工艺改进
引用本文:张树芬,马吉海,陈韶蕊,李海于,信建峰.6,7-二甲氧基香豆素的合成工艺改进[J].河北科技大学学报,2007,28(1):24-25,40.
作者姓名:张树芬  马吉海  陈韶蕊  李海于  信建峰
作者单位:河北科技大学理学院,河北石家庄,050018
摘    要:对苯醌与乙酸酐经1,4-加成生成1,2,4-苯三酚三乙酸酯,然后与苹果酸反应经水解、环合反应得6,7-二羟基香豆素,再经甲基化得到6,7-二甲氧基香豆素,总收率为74.4%,整个过程反应条件温和,操作方便,适合工业生产的要求,对产品结构进行了IR和1HNMR表征。

关 键 词:6  7-二甲氧基香豆素  对苯醌  Pechmann反应  合成  工艺改进
文章编号:1008-1542(2007)01-0024-02
收稿时间:2006/10/22 0:00:00
修稿时间:2006-10-222006-11-24

Improved synthesis technics of 6,7-dimethoxy coumarin
ZHANG Shu-fen,MA Ji-hai,CHEN Shao-rui,LI Hai-yu and XIN Jian-feng.Improved synthesis technics of 6,7-dimethoxy coumarin[J].Journal of Hebei University of Science and Technology,2007,28(1):24-25,40.
Authors:ZHANG Shu-fen  MA Ji-hai  CHEN Shao-rui  LI Hai-yu and XIN Jian-feng
Institution:College of Sciences, Hebei University of Science and Teehnology,Shijiazhuang Hebei 050018,China
Abstract:Hydroxyquinol triacetate was prepared from p-benzoquinone by 1,4-addition reaction with acetic anhydride and then 6,7-dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid.Then 6,7-dimethoxy coumarin was synthesized by methylating from 6,7-dihydroxy coumarin with an overall yield of 74.4%.The procedure was practical.Its structure was confirmed by IR and 1HNMR.
Keywords:6  7-dimethoxy coumarin  p-benzoquinone  Pechmann reaction  synthesis  technical improvement  
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