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Synthesis and Insecticidal Activity of Novel Pyrazole Amides Containing an Isoxazole Moiety

Chinese Journal of Organic Chemistry, ISSN: 0253-2786, Vol: 43, Issue: 4, Page: 1435-1443
2023
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Article Description

Sixteen novel pyrazole amide compounds containing an isoxazole unit were synthesized through introducing an isoxazole moiety to pyrazole amide molecules based on the structure of chlorantraniliprole. The structures of the designed compounds were characterized with H NMR, C NMR and elemental analysis. Preliminary bioassay showed that most of the target compounds exhibited 100% insecticidal activities against Mythimna separata at the dosage of 500 μg/mL. Three compounds had 80%~100% mortality rate towards M. separata at the dosage of 100 μg/mL, and three compounds still possessed 40%~50% mortality rate against M. separata when the dosage was lowered to 20 μg/mL. Three compounds displayed 100% insecticidal activities towards Aphis medicaginis at 500 μg/mL, and still showed good insecticidal activities against A. medicaginis with 70%~100% at 100 μg/mL. In addition, two compounds demonstrated 90%~100% mortality rates towards Tetranychus cinnabarinus at 500 μg/mL.

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