Combating pests with substituted benzoyl-(thio)ureas
AssigneeBayer Aktiengesellschaft
InventorsWilhelm Sirrenberg, Albrecht Marhold, Ingeborg Hammann, Ingomar Krehan, Wilhelm Stendel
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Abstract
A compound of the formula ##STR1## in which R.sup.1 represents a hydrogen or halogen atom or an alkyl radical, R.sup.2 represents a hydrogen or halogen atom, X represents an oxygen or sulphur atom, Y represents a hydrogen or halogen atom or an alkyl or halogenoalkyl radical and A represents an alkylene radical which is substituted by fluorine and optionally additionally substituted by chlorine, which possesses insecticidal activity.
Claims15
A compound of the formula ##STR14## in which R.sup.1 represents a hydrogen or halogen atom or an alkyl radical,
- R.sup.2 represents a hydrogen or halogen atom,
- X represents an oxygen or sulphur atom,
- Y represents a hydrogen or halogen atom or an alkyl or halogenoalkyl radical and
- A represents a C.sub.1-2 -alkylene radical which is substituted by fluorine and optionally additionally substituted by chlorine, with the proviso that when A is ethylene at least one of R.sup.1 and R.sup.2 must be halogen.
A compound selected from the group consisting of
- N-2,6-difluorobenzoyl-N'-(2,2,3-trifluoro-3-chloro-1,4-benzodioxin-6-yl)-ur ea,
- N-(2-chloro-6-fluoro-benzoyl)-N'-(2,2,3-trifluoro-1,4-benzodioxin-6-yl)-ure a,
- N-2,6-difluorobenzoyl-N'-(2,2-difluoro-benzodioxol-5-yl)urea,
- N-2,6-difluorobenzoyl-N'-(2,3,3-trifluoro-7-chloro-1,4-benzodioxin-6-yl)-ur ea,
- N-(2,-chloro-6-fluoro-benzoyl)-N'-(2,2,3-trifluoro-3-chloro-1,4-benzodioxin -6-yl)-thiourea,
- N-2,6-difluorobenzoyl-N'-(2,2,3-trifluoro-3-chloro-1,4-benzodioxin-6-yl)-th iourea and
- N-(2-fluorobenzoyl)-N'-(2,2,3,3-tetrafluoro-1,4-benzodioxin-6-yl)-thiourea.
Dependencies are inferred from the claim text.