Journal
MONATSHEFTE FUR CHEMIE
Volume 149, Issue 3, Pages 611-623Publisher
SPRINGER WIEN
DOI: 10.1007/s00706-017-2060-3
Keywords
1,3,4-Oxadiazole derivatives; 3-Chloropyridin-2-yl-1H-pyrazole; Synthesis; Larvicidal activity
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Funding
- National Natural Science Foundation of China [21562012, 21132003, 21162004]
- Special Foundation of S&T for Outstanding Young Talents in Guizhou [2015-15]
- S&T Foundation of Guizhou Province [J[2014]2056]
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A new series of 1,3,4-oxadiazole derivatives with a 3-chloropyridin-2-yl-1H-pyrazole moiety was designed, synthesized, and characterized. The results of bioassay against Helicoverpa armigera and Plutella xylostella indicated that some of the synthesized compounds showed remarkable larvicidal activity. In particular, the LC50 values of the most active compounds against P. xylostella were 46.5, 23.9, and 13.9 mg/dm(3), and against Helicoverpa armigera were 88.3 and 69.5 mg/dm(3), the latter being slightly better than commercial chlorpyrifos (LC50 103.77 mg/dm(3)). Preliminary SAR was also discussed. [GRAPHICS] .
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