2-NITROMETHYLENE AND 2-NITROIMINE DERIVATIVES OF TRIAZOLIDINE, THIAZINE, OXAZOLIDINE, OXAZINE, IMIDAZOLIDINE, TETRAHYDROPYRIMIDINE, PYRROLIDINE AND PIPERIDINE AS INSECTICIDES

摘要

AbstractThe present invention relates to novel heterocyclic compounds,to processes for their preparation and to their use as insec-ticides. The new heterocyclic compounds can be characterizedby the formula (I) (I)whereinn represents 0 or 1,R1, R2, R5 and R6 independently represent a hydrogen atom orand alkyl group,R3 and R4 independently represent a hydrogen atom, a hydroxygroup or an alkyl group, where n represents 1, then R2 mayform a single bond together with R5,X represents a sulfur atom, an oxygen atom or the followinggroups: -N-R7 or -?H-R8, wherein R7 and R8 have the meaningsindicated in the patent application,? represents a hydrogen atom or an alkyl group,Y represents a nitrogen atom or the group =?-Rwherein R9 has the meaning as defined in the patent applicationand whereinZ has the meaning as defined in the patent application.