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第 7 期 王春琴，等: 2-(4-芳氧苯氧基)丙酸衍生物的合成及除草活性 ·1207·

性具有显著影响，其中 Ar 基团对活性的影响最大， fenoxaprop in Japanese foxtail (Alopecurus japonicus) from China[J].
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Ar 为吡啶环时，化合物的除草活性总体较 Ar 为喹
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喔啉环化合物高；而当 Ar 为苯环和苯并唑环时， activities of new 1,3,4-oxadiazoles, 1,3,4-thiadiazoles, and 1,2,4-triazoles
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这两个品种均为水稻田（禾本科作物）防除禾本科
active R,R-2-(4-(2-(4-(5-chloro-3-halo-pyridiN-2-yloxy)-phenoxy)-
杂草的除草剂品种，作为除草剂品种可能考虑更多 propionyloxy)-phenoxy)-propionic acid esters using cyanuric
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