HERBICIDAL SUBSTITUTED PYRIDINES, METHOD FOR PRODUCING THE SAME AND THEIR USE AS HERBICIDAL AGENTS AND PLANT GROWTH REGULATORS

摘要

The invention relates to a compound of formula (I) and/or the salts thereof, wherein A represents an optionally substituted aryl or an optionally substituted heterocyclic group, X represents O or S, R<1>, R<2>, R<3>, R<4>, R<5> have the same or different definition mentioned in the description, m is 0 or 1, R<6> represents H, (C1-C8)alkyl, (C1-C8)alkoxy, (C2-C8)alkenyl or (C2-C8)alkinyl, and any of the last-mentioned four groups is unsubstituted or substituted, represents hydroxy or an acyl group, and B is an acyl group, or B and R<6> together form a 4- or 5-membered chain, with the exception of N-hydroxy-N-[(6-phenoxy-2-pyridyl)methyl]-acetamide and the salts thereof. The inventive compounds are suitable for use as herbicidal agents or growth regulators.