| 唑草酮的合成 |
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| 引用本文： | 李梅芳,韩邦友.唑草酮的合成[J].现代农药,2010,9(3):28-30,33. |
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| 作者姓名： | 李梅芳 韩邦友 |
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| 作者单位： | 江苏快达农化股份有限公司,江苏如东,226401 |
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| 摘 要： | 改进了除草剂唑草酮的合成工艺,以4-氯-2-氟苯肼为原料,经氨基腙合成、光气环合制成取代芳基三唑啉酮,再经二氟甲基化、硝化、加氢还原合成中间体1-(5-氨基-4-氯-2-氟苯基)-3-甲基-4-二氟甲基-1H-1,2,4-三唑啉-5-酮,重氮化后与丙烯酸乙酯反应,经后处理得唑草酮。
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| 关 键 词： | 唑草酮 三唑啉酮 合成路线 制备 |
Synthesis Process of Carfentrazone-ethyl |
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| LI Mei-fang,HAN Bang-you.Synthesis Process of Carfentrazone-ethyl[J].Modern Agrochemicals,2010,9(3):28-30,33. |
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| Authors: | LI Mei-fang HAN Bang-you |
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| Affiliation: | (Jiangsu Kuaida Agrochemical Co., Ltd., Jiangsu Rudong 226401, China) |
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| Abstract: | The synthesis process of carfentrazone-ethyl was greatly improved. Using 4-ehloro -2-fluorophenylhydrazine as the raw material, substitutional aryl-triazolinones was prepared by synthesis of amidrazone and phosgene cyelization. Then intermediate product 1-（5-amino-4-chloro-2-fluorophenyl）-3-methyl-4-difluoromethyl-1H-1,2,4-triazole-5-one was got through difluoromethylation and nitration and hydrogenating reduction. By means of the process of diazotization and then reacting with ethyl acrylate, earfentrazone-ethyl was finally obtained. |
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| Keywords: | carfentrazone-ethyl triazolinones synthesis route preparation |
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