Use of substituted malonic acid derivatives as agents for combating pests
AssigneeBayer Aktiengesellschaft
InventorsRudolf Fauss, Reinhard Lantzsch, Kurt Findeisen, Gerhard Jager, Ingeborg Hammann, Benedikt Becker, Bernhard Homeyer
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Abstract
Pesticidally active compounds of the formula ##STR1## in which R.sup.1 is an organic radical, R.sup.2 is hydrogen, trialkylsilyl, a hydrocarbon or acyl radical, and R.sup.3 and R.sup.4 independently are an amino, hydroxyl, hydroximino, alkoxy or like radical. Most of the compounds are new, as are various intermediates therefor.
Claims8
An agent for combating pests, wherein said agent contains a substituted malonic acid derivative of the formula ##STR192## wherein R.sup.1 represents phenyl, which is mono-, di- or trisubstituted in the 3-, 4- and 5-positions by identical or different halogen atoms,
- R.sup.2 is hydrogen, C.sub.1-4 -alkyl, optionally halogen-substituted C.sub.1-4 -alkylaminosulphonyl, C.sub.1-4 -alkylcarbonyl, optionally halogen-substituted phenylcarbonyl, phenylsulphenyl, C.sub.1-4 -alkylsulphenyl, trialkylsilyl or ##STR193## wherein R.sup.5 stands for hydrogen and
- R.sup.6 is optionally halogen-substituted phenyl or phenylcarbonyl, or C.sub.1-4 -alkyl or C.sub.1-4 -alkylcarbonyl and
- R.sup.3 and R.sup.4 each independently is amino, trimethylsilylamino, formylamino, C.sub.1-4 -alkylcarbonyl-amino, alkylamino, trialkylsilylalkylamino,
- both radical R.sup.3 and R.sup.4 only representing amino if R.sup.2 is other than hydrogen.
A substituted malonic acid derivative of the formula I ##STR194## wherein R.sup.1 represents phenyl, which is mono-, di- or trisubstituted in the 3-, 4- and 5-positions by identical or different halogen atoms
- R.sup.2 is hydrogen, C.sub.1-4 -alkyl, optionally halogen-substituted C.sub.1-4 -alkylaminosulphonyl, C.sub.1-4 -alkylcarbonyl, optionally halogen-substituted phenylcarbonyl, phenylsulphenyl, C.sub.1-4 -alkylsulphenyl, trialkylsilyl or ##STR195## wherein R.sup.5 stands for hydrogen and
- R.sup.6 is optionally halogen-substituted phenyl or phenylcarbonyl, or C.sub.1-4 -alkyl or C.sub.1-4 -alkylcarbonyl and
- R.sup.3 and R.sup.4 each independently is amino, trimethylsilylamino, formylamino, C.sub.1-4 -alkylcarbonyl-amino, alkylamino, trialkylsilylalkylamino,
- both radical R.sup.3 and R.sup.4 only representing amino if R.sup.2 is other than hydrogen.
A method for combating pests which comprises administering to such pest or to a pest habitat a pesticidally effective amount of a substituted malonic acid derivative of the formula ##STR196## wherein R.sup.1 represents phenyl, which is mono-, di- or trisubstituted in the 3-, 4- and 5-positions by identical or different halogen atoms,
- R.sup.2 is hydrogen, C.sub.1-4 -alkyl, optionally halogen-substituted C.sub.1-4 -alkylaminosulphonyl, C.sub.1-4 -alkylcarbonyl, optionally halogen-substituted phenylcarbonyl, phenylsulphenyl, C.sub.1-4 -alkylsulphenyl, trialkylsilyl or ##STR197## wherein R.sup.5 stands for hydrogen and
- R.sup.6 is optionally halogen-substituted phenyl or phenylcarbonyl, or C.sub.1-4 -alkyl or C.sub.1-4 -alkylcarbonyl and
- R.sup.3 and R.sup.4 each independently is amino, trimethylsilylamino, formylamino, C.sub.1-4 -alkylcarbonyl-amino, alkylamino, trialkylsilylalkylamino,
- both radical R.sup.3 and R.sup.4 only representing amino if R.sup.2 is other than hydrogen.
Dependencies are inferred from the claim text.