Picolinic acids and substituted pyridimine-4-carboxylic acids, process for their preparation and use as herbicides and plant growth regulators

摘要

Compounds of the formula (I), their N-oxides or their salts ** Formula ** in which A means a remainder of the group consisting of A1 to A20, ** Formula ** R1 means hydrogen or (C1-) alkyl C4), R2 means chlorine, R3 means hydrogen, R4 means hydrogen, R5 means hydrogen, halogen, OH, NH2, CN, (C1-C3) alkyl, (C1-C3) alkoxy, (C1-C3) alkylamino or cyclopropyl, R6 means hydrogen, halogen, OH, NH2, CN, (C1-C3) alkyl, (C1-C3) alkoxy, cyclopropyl or vinyl, R7 means hydrogen, halogen, (C1-C3) alkyl, (C1-C3) alkoxy, (C1-C3) alkylthio, cyclopropyl, (C1-C3) alkylamino or phenyl, R8 means hydrogen, (C1-C3) alkyl, phenyl or (C1-C3) alkylcarbon, X means N, CH, CCl, CF or CBr, n means 0, 1 or 2.