| 摘要 |
The invention refers to the field of plant protection in agriculture, in particular to new substituted 3,5-difluoropyridines of general formula I, with herbicidal properties, which are used in compositions for undesirable plant control: <CHFORM>wherein A represents an optionally substituted arylic group or an optionally substituted pentatomic or hexatomic nitrogen-bearing heteroaromatic group, or a difluorobenzodioxolyl groupR'' represents an optionally substituted phenyl or thienyl groupR represents a halogen atom or an optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkoxyalkyl, alkylthio, alkylamino, dialkylamino, alkyl-sulphinyl, alkyl-sulphonyl group, or a nitro, hydroxy, amino, haloalkyl, haloalkoxy, haloalkylthio group andX represents an oxygen or sulphur atom.The result consists in that the compounds according to the present invention combine a high herbicidal activity with the required selectivity and with an increased soil degradation property.Claims: 8
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