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吡啶衍生物研究(Ⅻ):2-(2-芳氧基吡啶-4-甲酰氧基)丙酸酯的合成及除草活性
Studies on Pyridine Derivatives (Ⅻ):Synthesis and Herbicidal Activity of 2-(2-Aryloxypyridine-4-carbonyloxy)-propionates
【摘要】 以2-氯-4-氰基吡啶和酚类化合物为原料,通过醚化、水解、酯化等反应合成了一系列2-(2-芳氧基吡啶-4-甲酰氧基)丙酸酯类化合物,其结构通过1H NMR和MS分析确证。生物活性测定结果表明,在1500g/hm2剂量下,部分目标化合物对油菜、反枝苋和马唐表现出较强的除草活性,用药15d内植物叶片逐渐失绿变黄,直至枯死,生长受到严重抑制。
【Abstract】 A novel series of 2-(2-aryloxy pyridine4-carbonyloxy)propionates were synthesized by etherification,hydrolysis and esterification starting from 2-chloroisonicotinonitrile and phenoles.All of the structures were comfirmed by 1H NMR and MS spectra.Preliminary bioassay showed that they were effective to Brassica campestris L.,Amaranthus retroflexus L.and Digitaria sanguinalis(Linn.) Scop.at 1 500 g/hm2.In 15 days of adminstration,the grasses lost their green sucessively and the growth was seriously inhibited.
【关键词】 二芳醚;
吡啶衍生物;
合成;
除草活性;
【Key words】 diaryl ether; pyridine derivatives; synthesis; herbicide activity;
【Key words】 diaryl ether; pyridine derivatives; synthesis; herbicide activity;
【基金】 国家自然科学基金课题(20472112);国家“十五”科技攻关课题(2004BA308A22-1)
- 【文献出处】 农药学学报 ,Chinese Journal of Pesticide Science , 编辑部邮箱 ,2009年01期
- 【分类号】O626.32
- 【被引频次】3
- 【下载频次】266