1-Aryl-4-alkyl-1,2,4-triazol-5-ones, processes for their preparation and their use as pesticides.

摘要

Compounds of the formula I IMAGE in which (R)n denotes hydrogen, halogen, nitro, cyano (substd.), alkyl (substd.), alkoxy (substd.), alkylthio (substd.), phenyl (substd.), phenoxy or methylenedioxy and R1 denotes alkyl, alkoxyalkyl, dialkoxyalkyl, dialkylaminoalkyl or cycloalkyl, have insecticidal, acaricidal, fungicidal and/or herbicidal properties, and are obtained by the cyclisation of IMAGE with phosgene or carbonic acid esters, and alkaline hydrolysis of the IMAGE obtained.