Synthesis and Insecticidal Evaluation of Novel N‐Pyridylpyrazolecarboxamides Containing Different Substituents in the ortho‐Position

In order to look for novel insecticides containing N-pyridylpyrazole, ten novel pyrazolecarboxamides containing different ortho-substituents in the aniline part were synthesized, and their structures were characterized by 1H NMR, 13C NMR and HRMS. The single crystal structure of10bwas determined by X-ray diffraction. Their evaluated insecticidal activity against oriental armyworm (Mythimna separata) indicated that all the compounds exhibited moderate insecticidal activities.