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Abstract

The invention relates to novel compounds of the general formula: ##STR1## in which R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 haloalkyl or unsubstituted or mono- to pentasubstituted phenyl, where the substituents are selected from the group consisting of C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, C.sub.1 -C.sub.6 alkoxy, aryloxy, halogen, cyano and nitro, where, if the number of substituents exceeds 1, the substituents can be identical or different; R.sub.2 is hydrogen, C.sub.1 -C.sub.6 alkyl, (C.sub.1 -C.sub.6 alkylene)phenyl, pyridyl, COOR.sub.6, CONR.sub.7 R.sub.8, COR.sub.6, allyl or CH.sub.2 --O--R.sub.6 ; R.sub.3 is unsubstituted or substituted heterocyclyl, where the substituents are in each case selected from the group consisting of unsubstituted or substituted phenyl, where the substituents are selected from the group consisting of C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, cyano and nitro, where, if the number of substituents exceeds 1, the substituents can be identical or different, benzyl, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, C.sub.1 -C.sub.6 alkoxy, aryloxy, halogen, cyano, hydroxyl, amino and nitro, where, if the number of substituents exceeds 1, the substituents can be identical or different; R.sub.6 is C.sub.1 -C.sub.6 alkyl, phenyl or benzyl; R.sub.7 and R.sub.8 independently of one another are hydrogen or C.sub.1 -C.sub.6 alkyl; X.sub.1 and X.sub.2 are each N; and X.sub.3 is O or S. The novel compounds have advantageous pesticidal properties and are particularly suitable for controlling pests in domestic and useful animals.

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