The invention relates inter alia to halogen-substituted compounds of the general formula (I) in which the substituents A1, R1-R3 and Z1-Z3 have the meanings given in the description. Also described are processes for preparing the compounds of the formula (I) and possible intermediates for the preparation of these compounds. The compounds according to the invention are particularly suitable for controlling insects 、 arachnids and nematodes in agriculture and ectoparasites in veterinary medicine.本發明尤其關於通式(I)之經鹵素取代的化合物,其中取代基A1、R1-R3和Z1-Z3具有說明書中所給予之意義。亦描術用於製備式(I)化合物及用於製備這些化合物之可能中間物的方法。根據本發明之化合物特別適用於防治農業之昆蟲、蜘蛛類及線蟲以及獸醫學中的體外寄生蟲。