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Molecules 2016, 21(1), 39; doi:10.3390/molecules21010039

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

1
Department of Applied Chemistry, College of Science, Huazhong Agricultural University, Wuhan 430070, China
2
Department of Plant Protection, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
*
Author to whom correspondence should be addressed.
Academic Editor: Jean Jacques Vanden Eynde
Received: 17 August 2015 / Revised: 9 December 2015 / Accepted: 11 December 2015 / Published: 25 December 2015
(This article belongs to the Section Organic Synthesis)
View Full-Text   |   Download PDF [2702 KB, uploaded 25 December 2015]   |  

Abstract

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. View Full-Text
Keywords: pyrazole; synthesis; herbicidal activities pyrazole; synthesis; herbicidal activities
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Kang, J.; Yue, X.L.; Chen, C.S.; Li, J.H.; Ma, H.J. Synthesis and Herbicidal Activity of 5-Heterocycloxy-3-methyl-1-substituted-1H-pyrazoles. Molecules 2016, 21, 39.

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