SUBSTITUTED 2-PHENYLPYRIDINES AS HERBICIDES

摘要

The invention concerns substituted 2-phenylpyridines of formula (I), in which: n = 0, 1; R?1, R3 and R4¿ represent H, OH, SH, NO¿2?, NH2, CN, COOH, CONH2, halogen, alkyl, alkyl halide, alkoxy, alkoxy halide, alkyl amino, dialkyl amino, alkyl thio, alkyl thio halide, alkylamino carbonyl, dialkylamino carbonyl; R?2¿ represents H, OH, SH, NO¿2?, NH2, CN, halogen, alkyl, alkyl halide, alkoxy halide, alkylthio, alkyl thio halide, alkyl sulphinyl, alkyl sulphinyl halide, alkylsulphonyl, alkyl sulphonyl halide; R?5¿ represents H or CN, halogen; R6, R8 represent H or halogen; R7 represents H, OH, NO¿2?, CN, CF3-SO2-O-, halogen, alkyl, alkyl halide, alkoxy, alkoxy halide; X represents oxygen or sulphur; R?9, R10¿ represent H, alkyl; m = 1-4; R11 represents alkyl, cycloalkyl, alkyl halide, alkenyl, alkenyl halide, alkoxy carbonyl, alkoxycarbonyl alkyl, optionally substituted phenyl, thienyl, furanyl, tetrahydrofuranyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, pyridyl, or pyrimidyl, possible substituents being NO¿2?, CN, halogen, alkyl or alkoxy; R?12, R13¿ represent alkoxy, alkylthio or, together with the common C atom (a), (b), (c), (d) or (e); R14 represents H, alkyl, alkenyl, alkenyl halide, alkoxycarbonyl alkyl benzyl; Z represents an optionally substituted ethylene or trimethylene chain. The invention also concerns salts of these compounds and the use of the compounds and salts as herbicides and for drying out and defoliating plants.