| abstract |
The present invention relates to novel trisubstituted 3,5-difluoropyridine derivatives, to a process for their preparation, to herbicidal compositions containing such derivatives and to the use of such derivatives for herbicides. In the general formula (I) of the 3,5-difluoropyridines according to the invention, A represents an optionally substituted aryl tube, a 5- or 6-membered optionally substituted nitrogen-containing heteroaromatic tube or a difluoro-benzoyl tube; R '' is optionally substituted phenyl or thienyl; R represents a halogen atom or an optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkoxyalkyl, alkylthio, alkylamino, dialkylamino, alkylsulfinyl or alkylsulphonyl group. a tube or a nitro, hydroxy, amino, haloalkyl, haloalkoxy, haloalkylthio or SF5 tube; and X is oxygen or sulfur. The processes according to the invention are prepared by reacting compounds of general formula (I), reacting compounds of general formula (II) with compounds of general formula (III) and reacting compounds of general formula (IV) with compounds of general formula (V). ŕ |