The present invention relates to a process for the preparation of pesticidal compounds, and more particularly to the preparation of pyrazole compounds. In particular, the present invention relates to a process for preparing 1-arylpyrazoles and 1-pyridylpyrazoles which have pesticidal activity. More particularly, the present invention relates to a novel process by which 3,4,5-trisubstituted 1-arylpyrazoles may be produced directly in a reaction which involves coupling of an aryldiazonium species with an appropriately substituted precursor bearing a desired substituent.
本发明涉及一种制备杀虫化合物的过程,更特别地涉及制备
吡唑化合物的过程。具体而言,本发明涉及制备具有杀虫活性的1-芳基
吡唑和1-
吡啶基
吡唑的过程。更具体地,本发明涉及一种新的过程,通过在含有所需取代基的适当取代前体与芳基重氮离子物偶联的反应中直接制备3,4,5-三取代的1-芳基
吡唑。