| 4,5-二氢-3-甲基-1-(4-氯-2-氟苯基)-4-二氟甲基-1,2,4-三唑-5(1H)酮的合成方法 |
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| 引用本文： | 何普泉,王传品,苏朝辉,王广强.4,5-二氢-3-甲基-1-(4-氯-2-氟苯基)-4-二氟甲基-1,2,4-三唑-5(1H)酮的合成方法[J].安徽化工,2007,33(3):19-20. |
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| 作者姓名： | 何普泉 王传品 苏朝辉 王广强 |
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| 作者单位： | 安徽丰乐农化有限责任公司,安徽,合肥,230031;安徽丰乐农化有限责任公司,安徽,合肥,230031;安徽丰乐农化有限责任公司,安徽,合肥,230031;安徽丰乐农化有限责任公司,安徽,合肥,230031 |
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| 摘 要： | 4,5-二氢-3-甲基-1-(4-氯-2-氟苯基)-4-二氟甲基-1,2,4-三唑-5(1H)酮是超高效含氟除草剂唑酮草酯的重要中间体,采用高温氟化的方法,通过优化反应条件,使目标化合物的合成收率达75.4%,含量达97.3%,降低了成本,更利于工业化生产.
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| 关 键 词： | 4 5-二氢-3-甲基-1-(4-氯-2-氟苯基)-4-二氟甲基-1 2 4-三唑-5(1H)酮 唑酮草酯 中间体 高温氟化 |
| 文章编号： | 1008-553X（2007）03-0019-02 |
| 修稿时间： | 2007-02-26 |
Synthesis of 4,5-dihydro-3-methyl-1-(4-chloro-2-fluorophenyl)-4-difluoromethyl-1,2,4-triazol-5-(1H)-one |
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| HE Pu-quan,WANG Chuan-pin,SU Zhao-hui,WANG Guang-qiang.Synthesis of 4,5-dihydro-3-methyl-1-(4-chloro-2-fluorophenyl)-4-difluoromethyl-1,2,4-triazol-5-(1H)-one[J].Anhui Chemical Industry,2007,33(3):19-20. |
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| Authors: | HE Pu-quan WANG Chuan-pin SU Zhao-hui WANG Guang-qiang |
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| Affiliation: | Anhui Fengle Agri-chemical Co. Ltd., Hefei 230031, China |
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| Abstract: | Adopting the technique of elevated temperature fluoration and optimizing the rdaction condition,the synthetic yield of 4,5-dihydro-3-methyl-1-(4-chloro-2-fluorophenyl)-4-difluoromethyl-1,2,4-triazol-5-(1H)-one was improved to 75.7% and the content reached 97.3%. This technique reduced production cost and good for industrialization. This compound was an important intermediate to synthesize carfentrazon e-ethyl,a super high effective herbicide. |
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| Keywords: | 4 5-dihydro-3-methyl-1-(4-chloro-2-fluorophenyl)-4-difluoromethyl-1 2 4-triazol-5-(1H)-one carfentrazone-ethyl intermediate elevated temperature fluoration |
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