No abstract

No abstract

A series of new N-pyridylpyrazole amides bearing substituted isoxazole moiety were designed and prepared based on chlorantraniliprole. These compounds were structurally determined through 1 H NMR, 13 C NMR and elemental analyses. Bioassay results displayed that all designed compounds showed a mortality rate of 100% towards Oriental armyworm at the dosage of 500 μg/mL. At the dosage of 100 μg/mL, the mortality rates of four compounds towards Oriental armyworm were 80%～100%. Two compounds had 40%～50% insecticidal activities towards Oriental armyworm at the concentration of 20 μg/mL. At the concentration of 500 μg/mL, five compounds demonstrated 90%～100% insecticidal activities against Aphis medicaginis. Moreover, at the dosage of 500 μg/mL, two compounds exhibited 70%～80% insecticidal activities against Tetranychus cinnabarinus.

In search of new N-heterocyclic compounds possessing good biological activities, 17 novel pyrazole oxime derivatives were designed and synthesized by introducing benzotriazole moiety into pyrazole oxime skeleton based on fenpyroximate. Their structures were tested by 1 H NMR, 13 C NMR and elemental analysis. Preliminary bioassay data displayed that 3 compounds showed 70%～100% insecticidal activities towards Tetranychus cinnabarinus at 20 μg/mL. 6 compounds possessed 90%～100% mortality rates towards Aphis medicaginis at 20 μg/mL. Moreover, 16 compounds displayed more than 80% insecticidal activities against Mythimna separata (Walker) at 500 μg/mL.

No abstract