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[1]吴忆雯,马 银,冯薇伟,等.一种草铵膦新型中间体的合成和表征[J].武汉工程大学学报,2018,40(01):17-22.[doi:10. 3969/j. issn. 16742869. 2018. 01. 001]
 WU Yiwen,MA Yin,FENG Weiwei,et al.Synthesis and Characterization of 2-acetamido-4- [hydroxy (methyl) phosphonyl] but-2-enoic acid, A New Intermediate of Glufosinate-Ammonium[J].Journal of Wuhan Institute of Technology,2018,40(01):17-22.[doi:10. 3969/j. issn. 16742869. 2018. 01. 001]
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一种草铵膦新型中间体的合成和表征(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
40
期数:
2018年01期
页码:
17-22
栏目:
化学与化学工程
出版日期:
2018-02-25

文章信息/Info

Title:
Synthesis and Characterization of 2-acetamido-4- [hydroxy (methyl) phosphonyl] but-2-enoic acid, A New Intermediate of Glufosinate-Ammonium
文章编号:
20180103
作者:
吴忆雯马 银冯薇伟舒 畅奚 强户业丽程 波*
武汉工程大学化学与环境工程学院,湖北 武汉 430205
Author(s):
WU Yiwen MA YinFENG WeiweiSU ChangXI QiangHU YeliCHENG Bo*
School of Chemistry and Environmental Engineering,WuhanInsitute of Technology,Wuhan 430205, China
关键词:
乙酰氨基丙二酸二乙酯水解缩合2-乙酰氨基-4-[羟基(甲基)膦酰基]丁-2-烯酸 草铵膦
Keywords:
diethyl acetamidomalonate hydrolysis condensation 2-acetylamino-4- [hydroxy (methyl) phosphonyl] but-2-enoic acid glufosinate-ammonium
分类号:
TQ457.2
DOI:
10. 3969/j. issn. 16742869. 2018. 01. 001
文献标志码:
A
摘要:
设计并合成了一种草铵膦的新型中间体2-乙酰氨基-4-[羟基(甲基)膦酰基]丁-2-烯酸。以乙酰氨基丙二酸二乙酯为初始原料,经水解,缩合反应得到终产物。该路线的反应条件如下:水解反应时,NaOH和原料摩尔比为1.02∶1,反应温度25 ℃~30℃,最佳反应时间16 h,中间物单乙酯的收率85.3%;缩合反应时,最佳投料摩尔比为n(单乙酯)∶n(膦醛)∶n(吡啶)∶n(乙酸酐)=1.1∶1∶10∶(3~4)时,缩合产物收率74%。最后对产物2-乙酰氨基-4-[羟基(甲基)膦酰基]丁-2-烯酸经1H NMR,13C NMR,31P NMR进行了表征。通过优化反应条件,总收率达到 63.1%,该路线工艺简单,条件温和,适合工业生产。
Abstract:
The 2-acetamido-4- [hydroxy (methyl) phosphonyl] but-2-enoic acid, an intermediate for producing glufosinate-ammonium,was synthesized with diethyl acetamidomalonate as a start material through hydrolysis and condensation reactions. The yield of monoethyl ester was 85.3% by hydrolysis with 1.02∶1 mole ratio of sodium hydroxide to diethylacetamidomalonate at 25 ℃-30 ℃ for 16 h. The yield of main products after condensation reached 74% with 1.1/1/10/(3-4) mole ratio of monoethyl ester/ phosphonic aldehyde/ pyridine/anhydride. Finally, the structures of the product, 2-acetamido-4- [hydroxy (methyl) phosphonyl] but-2-enoic acid was characterized by 1H, 13C and 31P nuclear magnetic resonance spectroscopy. Its total yield of intermediate is 63.1% under the optimum reaction conditions. This synthetic route is suitable in industry production with simple operation and mild conditions.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:吴忆雯,硕士研究生。E-mail:315728699@qq.com*通讯作者:程 波,硕士,副教授。E-mail:lt_bb@163.com引文格式:吴忆雯,马银,冯薇伟,等. 一种草铵膦新型中间体的合成和表征[J]. 武汉工程大学学报,2018,40(1):17-22.
更新日期/Last Update: 2018-02-01