| 新型高效除草剂噻磺隆合成新工艺 |
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| 引用本文： | 李春仁,陆阳,陶京朝,张志荣,李门双. 新型高效除草剂噻磺隆合成新工艺[J]. 山西化工, 2006, 26(5): 19-21 |
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| 作者姓名： | 李春仁 陆阳 陶京朝 张志荣 李门双 |
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| 作者单位： | 信阳职业技术学院机电化工工程系,河南,信阳,464000;郑州大学化学系,河南,郑州,450001;信阳农业高等专科学校,河南,信阳,464000;郑州大学化学系,河南,郑州,450001;安徽省华祥农药化工公司,安徽,合肥,230041;信阳农业高等专科学校,河南,信阳,464000 |
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| 摘 要： | 介绍了以氯甲酸甲酯和2-羧甲基-3-磺酰氨基噻吩为起始原料合成除草剂噻磺隆的方法。原料2-羧甲基-3-磺酰氨基噻吩与氯甲酸甲酯生成2-甲氧羧基-3-磺酰氨基甲酸甲酯噻吩，再与2-氨基-4-甲氧基-6-甲基均三嗪反应生成噻磺隆。避免了异氰酸酯路线的种种缺点，具有收率高、含量高和成本低的特点。以2-羧甲基-3-磺酰氨基噻吩计，总收率为77．73％，原药纯度达到93．6％。
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| 关 键 词： | 噻磺隆 氯甲酸甲酯 磺酰脲 除草剂 |
| 文章编号： | 1004-7050（2006）05-0019-03 |
| 收稿时间： | 2006-04-19 |
| 修稿时间： | 2006-04-19 |
New Methodology for Synthesis of Novel Herbicide Thifensulfuron |
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| LI Chun-ren,LU Yang,TAO Jing-zhao,ZHANG Zhi-rong,LI Men-shuang. New Methodology for Synthesis of Novel Herbicide Thifensulfuron[J]. Shanxi Chemical Industry, 2006, 26(5): 19-21 |
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| Authors: | LI Chun-ren LU Yang TAO Jing-zhao ZHANG Zhi-rong LI Men-shuang |
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| Affiliation: | 1. Mechanical and Electrical Chemistry Engineering Department of Xinyang Vocational and Technical College, Xinyang Henan 464000, China; 2.Chemistry Department of Zhengzhou University, Zhengzhou Henan 450001, China; 3.Xinyang Agriculture College, Xinyang Henan 464000, China; 4. Anhui Province Huaxiang Pesticides Chemical Engineering Company, Hefei Anhui 230041, China |
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| Abstract: | A method for preparation of thifensulfuron from methyl chlorformate and 2-methoxycarbonyl-3-aminosulfonylthiophe as starting material was reported. First, 2-methoxycarbonyl-3-aminosulfonylthiophene reacts with methyl chloroformate to give 2- methoxycarbonyl-3-amlnosulfonyl methyl formatethiophene, then thifensulfuron was obtained after the reaction of the above product with 2-amino-4-methoxy-6-methyl-1,3,5-triazine. This is an economical method to prepare thifensulfuron with high yield and good purity, and it avoids the shortcoming of the isocyanate route. The total yield reaches 77.73% and the purity is 93.6% based on 2- methoxycarbonyl-3- aminosul fonylthiophene. |
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| Keywords: | thifensulfuron methyl chloroformate sulfonylureas herbicide |
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