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除草剂苯磺隆的合成工艺

Synthesis of tribenuron-methyl

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【作者】 陆阳董超宇李春仁陶京朝

【Author】 LU Yang~(1,2) DONG Chaoyu~4 LI Chunren~3 TAO Jingzhao~2 JZ(~1 Office of Organic chemistry,Xinyang Agriculture College,Xinyang 464000 Henan Province,China;~2 Chemistry Department of ZhengZhou University.ZhengZhou 450001,China;~3 Chemical Engineering Department of Xinyang Vocational and Technical college,Xinyang 464000 Henan,China,~4 College of Chemical Engineering,Kaifeng University Kaifeng 475000,Henan Province,China)

【机构】 郑州大学化学系开封大学化工系信阳职业技术学院信阳农专有机化学教研室 郑州 450001 信阳农专有机化学教研室河南 信阳 464000河南 开封 475000

【摘要】 由邻甲氧羰基苯磺酰胺和氯甲酸甲酯为起始原料,经过酯化、胺解二步反应合成了苯磺隆,确定了各步反应的较佳工艺条件。总收率为81.3%,原药纯度达96%。该工艺具有原料易得,反应步骤少等特点。

【Abstract】 Tribenuron-methyl was synthesized in a two-step process involving esterification and amide using 2-methoxycarbonyl- sulfamoylbenzoate and methyl chloroformate as starting material.Synthesis condition were optimized for each step.Overall yield reaches 81.3% the product purity was 96%.This process features the advantages of ready availability of reactants and few reaction steps.

  • 【分类号】TQ457
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