| 磺酰脲类除草剂DPX-E9636的水解机理 |
| 摘要点击 1583 全文点击 2076 投稿时间：1996-10-18 |
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| 中文关键词 除草剂 DPX－E9636 水解 |
| 英文关键词 sulfonylurea herbicide DPX-E9636 hydrolysis mechanism |
| DOI 10.13227/j.hjkx.19970203 |
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| 中文摘要 |
| 对室温下DPX-E9636的水解产物分离纯化后,运用元素分析、紫外光谱及1H核磁共振谱鉴定了主要产物的结构。产物为:1-(4,6-二甲氧基嘧啶基-2)-3-(乙磺酰基-2-吡啶基)脲、N-(4,6-二甲氧基嘧啶基-2)-3-乙磺酰基-2-胺基吡啶、3-乙磺酰基-2-胺基吡啶及2-胺基-4,6-二甲氧基嘧啶。由此推测了DPX-E9636的水解机理。 |
| 英文摘要 |
| DPX-E9636,1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-ethylsulfony1-2-pyridylsulfonyl)urea(Ⅰ)hydrolysis was studied.The structures of the hydrolytic products were established by elemental analysis,ultraviolet absorption spectroscopy(UV)and 1H nuclear magnetic resonance spectroscopy(1H NMR).The four hydrolytic products were 1-(4,6-dimethoxypyrimidin-2-yl)-3-(3-ethylsulfonyl-2-pyridyl)urea(Ⅱ),N(4,6-dimethoxypyrimidin-2-yl)-3-ethylsulfonyl-2-aminopyridine(Ⅲ),2-amino-4,6-dimethoxy1 pyrimidin(Ⅳ)and 3-ethylsulfonylpyridine(Ⅴ).A mechanism,which accounts for the formation of the structures of hydrolytic products,was proposed. |
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