Synthesis and Herbicidal Activity of 5-Heterocycloxy-3-methyl-1-substituted-1H-pyrazoles

Molecules

Jing Kang¹  Xia Li Yue¹  Chang Shui Chen¹  Jian Hong Li²  Hong Ju Ma² 

[1] 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;

关键词: pyrazole;    synthesis;    herbicidal activities;   

DOI  :  10.3390/molecules21010039

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.