| abstract |
The invention relates to novel substituted benzoyl ketones of the formula (I)in whichn represents 0, 1, 2 or 3,A represents a single bond or represents alkanediyl (alkylene),R<1 >represents hydrogen or represents in each case optionally substituted alkyl or cycloalkyl,R<2 >represents hydrogen, cyano, carbamoyl, halogen, or represents in each case optionally substituted alkyl, alkoxy, alkoxycarbonyl, alkylthio, alkylsulphinyl or alkylsulphonyl,R<3 >represents hydrogen, nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, or represents in each case optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkylamino or dialkylaminosulphonyl,R<4 >represents nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, or represents in each case optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkyiamino or dialkylaminosulphonyl, andZ represents an optionally substituted 4- to 12-membered, saturated or unsaturated, monocyclic or bicyclic, heterocyclic grouping which, contains 1 to 4 hetero atoms (up to 4 nitrogen atoms and optionally-alternatively or additionally-one oxygen atom or one sulphur atom, or one SO grouping or one SO2 grouping) and which additionally contains one to three oxo g of the heterocycle roups (C=O) and/or thioxo groups (C=S) as components, of the heterocycle, and to processes for their preparation and to their use as herbicides. |