Dihydrotriazolone derivatives as pesticides

• Main Author: Ziegler, Hugo
• Format: Patent
• Language: English
• Published: 20.08.2002

The present invention relates to new dihydrotriazolone derivatives having microbicidal, insecticidal and acaricidal activity, a process for their preparation, new intermediates for the preparation thereof, agrochemical compositions containing these active ingredients, as well as the use thereof in the control and prevention of plant-pathogenic fungi, acarids and insects in agriculture, horticulture and in the field of hygiene. Compounds of formula 1 wherein:Y signifies halogen, C-C-alkoxy, C-C-alkylthio or hydroxy;Rsignifies methyl, ethyl or cyclopropyl;Rsignifies C-C-alkyl or C-C-alkyl substituted by 1 to 5 fluorine atoms;Ris C-C-alkyl, C-C-alkoxy, C-C-cycloalkyl, C-C-cycloalkoxy, C-C-alkenyl, C-C-alkenyloxy, C-C-alkinyl, C-C-alkinyloxy, C-C-alkoxycarbonyl or CN, whereby, with the exception of CN, the above-mentioned groups may be substituted by identical or different substituents; orRis aryl, heteroaryl, heterocyclyl, aryloxy, heteroaryloxy or heterocyclyloxy, whereby the above-mentioned groups may be substituted by identical or different substituents,Rsignifies hydrogen or methyl; have microbicidal, insecticidal and acaricidal activity and may be used to control insects and plant-pathogenic fungi in agriculture, horticulture and in the field of hygiene.