3,5-Dioxo-2,3,4,5-tetrahydro-1,2,4-triazine compounds, composition containing them, their use as insecticides and acaricides

摘要

3,5-Dioxo-2,3,4,5-tetrahydro-1,2,4- triazine compound of the formula,wherein R, is an allyl or propargyl group, R₂ is ais a hydrogen atom or a methyl group: and when R₃ is a hydrogen atom, R. is a group of(in which R, is a chlorine, bromine or fluorine atom, or a methyl, vinyl, methoxycarbonyl or methoxymethyl group, R₈ is a hydrogen, chlorine, bromine or fluorine atom or a methyl group), and when R₃ is a methyl group, R₄ is a methyl group, R₅ is an isopropyl or cyclopropyl group, R₆ is an alkyl group having 1 to 3 carbon atoms or alkoxyl group having 1 to 3 carbon atoms, or a chlorine, bromine or fluorine atom, n is 1 or 2, and -(R₆)n may include a 3,4-methylenedioxy group, and its use as an insecticide and/or acaricide. in which ^R₃