第 43 卷第 4 期 | | Vol. 43 No. 4 | 2013 年 8 月 | Aug 2013 |
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所属栏目:功能材料
无水氯化镁和三乙胺催化合成β-酮酸酯 |
王素敏(1980-),女,河南平顶山人,副教授,博士,研究方向:有机合成。(E-mail:suminwang@163.com) |
摘 要:以丙二酸二乙酯为原料,在氢氧化钾条件下将其转变为丙二酸单乙醇酯钾盐,研究丙二酸单乙醇酯钾盐在无水氯化镁-三乙胺碱体系作用下,与酰氯反应制备β-酮酸酯的方法。产物结构经1H NMR、质谱、元素分析确证。该方法避免使用格氏试剂、氢化钠、丁基锂等强碱,条件温和,操作简单,成本低,适合在实验室和工业生产中制备β-酮酸酯。 |
关键词:β-酮酸酯;丙二酸单乙醇酯钾盐;无水氯化镁-三乙胺;合成 |
中图分类号:O621.25 文献标识码:A 文章编号:1009-9212(2013)04-0042-03 |
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A Safe and Economical Method for the Preparation of
β-Keto Esters |
WANG Su-min,WANG Xiao-min,WANG Qi-guan,GAO Yin-di,LU Zhi-yuan
(School of Materials and Chemical Engineering,Xi′an Technological University,Xi′an 710032,China) |
Abstract:β-Keto esters is a series of important and versatile intermediates in organic synthesis. In this paper,an economical method with high yield for the preparation of β-keto ester was developed starting from diethyl malonate via potassium ethyl malonate,which was reacted with acyl chloride under catalysis of anhydrous magnesium chloride-triethylamine system. This process avoids using of Grignard reagent,sodium hydride and n-butyl lithium. Therefore it can be conducted under mild conditions with low costs and suitable for commercial production of β-keto esters with high purity. |
Key words:β-keto ester;potassium ethyl malonate;magnesium chloride-triethylamine;synthesis |
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基金项目:陕西省自然科学基金项目(2013JM6012),陕西省教育厅专项科研计划项目(11JK0800),大学生创新创业训练计划项目(201210702015,201210702017)。
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作者简介:王素敏(1980-),女,河南平顶山人,副教授,博士,研究方向:有机合成。(E-mail:suminwang@163.com)
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收稿日期:2013-08-2
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