Synthesis and Herbicidal Activity of Novel N-(2,2,2)-Trifluoroethylpyrazole Derivatives

被引：37
|
作者：
Ma, Hong-Ju [1 ]
Li, Yong-Hong [1 ]
Zhao, Qian-Fei [1 ]
Zhang, Tao [1 ]
Xie, Ru-Liang [1 ]
Mei, Xiang-Dong [1 ]
Ning, Jun [1 ]
机构：
[1] Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2010年 / 58卷 / 07期
关键词：
N-(2,2,2)-Trifluoroethylpyrazole; herbicidal activity; synthesis; safety; PYRAZOLE DERIVATIVES; INHIBITORS; KIH-485; CORN; EFFICACY;
D O I：
10.1021/jf9042166
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
A series of novel N-(2,2,2)-trifluoroethylpyrazole derivatives were synthesized, and their structures were characterized by IR, mass spectroscopy, (1)H NMR, and elementary analysis. The herbicidal activities of target compounds 10a-c and 11a-c were assessed. The bioassay results showed that these pyrazole derivatives exhibited good herbicidal activity. Compound 11a showed the best pre-emergence herbicidal effects against both dicotyledonous and monocotyledonous weeds with good safety to maize and rape at the dosage of 150 g a.i. ha(-1) in greenhouse. Field trials indicated that compound 11a exhibited better herbicidal activity by soil application than the commercial herbicide, metolachlor. Moreover, compound 11a showed the same level of safety to maize as metolachlor.
引用
收藏
页码：4356 / 4360
页数：5
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