| 摘要 |
2-tert-butyl-5-isoxazolylmethylthio-3(2H)-pyridazin-3-one derivatives of the general formula <IMAGE> where R1 is hydrogen or C1-C4-alkyl, R2 is hydrogen, C1-C8-alkyl, C2-C8-alkenyl, C1-C4-haloalkenyl, C2-C8-alkoxyalkyl, C3-C10-cycloalkyl, C2-C5-alkoxycarbonyl, aryl or C7-C20-aralkyl, or aryl which is monosubstituted, disubstituted or trisubstituted by halogen, C1-C8-alkyl, C1-C8-alkoxy, C1-C4-haloalkyl, C1-C4-haloalkoxy, phenyl, phenoxy or cyano and/or monosubstituted or disubstituted by nitro or C7-C20-aralkyl substituted by the said substituents in the aryl moiety, R3 is hydrogen, halogen, C1-C8-alkyl or C2-C8-alkenyl and X is chlorine or bromine, their preparation and their use for controlling pests.
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