PESTICIDES

摘要

Novel pesticides of formula (I), wherein R1 is hydrogen or a radical from the group C1-C4alkyl, formyl, C1-C6alkylcarbonyl, C1-C4alkylsulfonyl, aryl, arylslfonyl, arylcarbonyl, heterocyclyl and heterocyclyl-substituted C1-C6alkyl; X is CH or N; Y is an electron-withdrawing radical; T has the meanings of R1 or together with U forms a C1-C4alkylene bridge which is unsubstituted or substituted by a radical R1, or T and U together with the group -N-C-N- form a saturated or unsaturated 5- or 6- membered heterocyclic ring which may in addition contain as further hetero atom O or S or the hereto group -N(C1-C6alkyl)-; R2, R2', U ara hydrogen or C1-C6alkyl; R is C1-C20alkyl, C2-C20alkenyl, C2-C6alkynyl, heterocyclyl, C3-C7cycloalkyl or is phenyl phenoxyphenyl. Also described are compositions suitable for use as parasiticides comprising those compounds as active ingredient and to methods of controlling parasites that are based on the administration of those compounds or compositions, and to the use of the said compounds and compositions in a method of controlling parasites and in the manufacture of pesticides for use against parasites. Also described are intermediates of formula (XX) wherein Hal is halogen. The latter also exhibit parasiticidal activity and are suitable for the preparation of the compounds of formula (I).