PESTICIDALLY ACTIVE N-IMINOPYRIDINIUM YLIDE COMPOUNDS

摘要

Pesticidally active N-iminopyridinium ylide compounds of formula (I) wherein A is CR₄R₅ or C=O; X is O or S; Y is O or S; Het is a 5- or 6-membered carbon-bound saturated, unsaturated or aromatic heterocycle, having 1, 2 or 3 heteroatoms selected from O, S and N; said Het can be mono- di- or trisubstituted by substituents selected from the group consisting of halogen, C₁-C₄-alkyl and C₁-C₄-haloalkyl; R₁, R₂, and R₃ are independently from one another selected from hydrogen, halogen, C₁-C₄-alkyl, C₁-C₄-haloalkyl, C₁-C₄-alkoxy, C₁-C₄-haloalkoxy, cyano and nitro; and R₄ and R₅ are independently from one another selected from hydrogen, halogen and C₁-C₄-alkyl; or R₄ and R₅ together with the carbon to which they are each attached form a 3 to 6 membered cycloalkyi group; are useful for controlling animal pests and can be prepared in a manner known per se.