5-杂环氧基-3-甲基-1-取代-1H-吡唑的合成及其除草活性
Synthesis and Herbicidal Activity of 5-Heterocycloxy-3-methyl-1-substituted-1H-pyrazoles.
作者信息
Kang Jing, Yue Xia Li, Chen Chang Shui, Li Jian Hong, Ma Hong Ju
机构信息
Department of Applied Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, China.
Department of Plant Protection, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
出版信息
Molecules. 2015 Dec 25;21(1):E39. doi: 10.3390/molecules21010039.
With the objective of finding valuable herbicidal candidates, a series of new 5-heterocycloxy-3-methyl-1-substituted-1H-pyrazoles were synthesized and their herbicidal activities were evaluated. The bioassay results showed that some compounds exhibited excellent herbicidal activities at the concentration of 100 mg/L, and compound 5-chloro-2-((3-methyl-1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl)oxy)pyrimidine showed bleaching activity to green weeds. In greenhouse conditions, this compound also showed excellent post-emergence herbicidal effect against Digitaria sanguinalis L. at the dosage of 750 g a. i. ha(-1).
为了寻找有价值的除草剂候选物，合成了一系列新型5-杂环氧基-3-甲基-1-取代-1H-吡唑，并对其除草活性进行了评价。生物测定结果表明，一些化合物在100mg/L浓度下表现出优异的除草活性，化合物5-氯-2-((3-甲基-1-(2,2,2-三氟乙基)-1H-吡唑-5-基)氧基)嘧啶对绿色杂草表现出漂白活性。在温室条件下，该化合物在750g a.i. ha(-1)剂量下对马唐也表现出优异的苗后除草效果。
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