Importance

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Abstract

Compounds of the formula I ##STR1## in which: where: X is CH or N; Y is O; S, S.dbd.O or NR.sub.5 ; Z is OR.sub.2, SR.sub.2, N(R.sub.3)R.sub.4 ; or Y and Z together form 5- to 7-membered ring which contains, 2 or 3 hetero atoms O and/or N and which is unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, halo-C.sub.1 -C.sub.4 alkyl, halogen, .dbd.O or cyclopropyl; V is a direct bond or C.sub.1 -C.sub.6 alkylene, which is unsubstituted or substituted by C.sub.1 -C.sub.3 alkyl, C.sub.2 -C.sub.3 alkylidene or C.sub.3 -C.sub.6 cycloalkylidene; U is O, S, NR.sub.7, SO or SO.sub.2 ; W is substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl; R.sub.1 is cyclopropyl, C.sub.1 C.sub.6 alkyl or halo-C.sub.1 -C.sub.6 alkyl; R.sub.2 and R.sub.3 independently of one another are C.sub.1 -C.sub.6 alkyl or halo-C.sub.1 -C.sub.6 alkyl; R.sub.4 and R.sub.5 independently of one another are hydrogen, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy; R.sub.7 is hydrogen, C.sub.1 -C.sub.6 alkyl, benzyl, C.sub.1 -C.sub.6 alkylcarbonyl, halo-C.sub.1 -C.sub.6 alkylcarbonyl, halo-C.sub.2 -C.sub.6 alkenylcarbonyl; R.sub.21 and R.sub.22 independently of one another are hydrogen, halogen, C.sub.1 -C.sub.8 alkyl or C.sub.1 -C.sub.8 alkoxy or C.sub.1 -C.sub.8 alkylthio; R.sub.23, R.sub.24, R.sub.25, R.sub.26 independently of one another are hydrogen, halogen, C.sub.1 -C.sub.8 alkyl or C.sub.1 -C.sub.8 alkoxy; are pesticidally active. They can be used for pest control, in particular as fungicides, acaricides and insecticides in crop protection.

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