Herbicidally active 6′-phenyl-2,2′-bipyridine-3-carboxylic acid derivatives

摘要

There are described 6′-phenyl-2,2′-bipyridine-3-carboxylic acid derivatives of the general formula (I) as herbicides.;;In this formula (I), R1 to R5 are radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen, nitro, cyano and formyl.

主权项

1. A 6-phenyl-2,2′-bipyridine-3-carboxylic acid derivative of formula (I), and/or an N-oxide and/or a salt thereofin which
R1, R4, and R5 independently of one another are nitro, halogen, cyano, formyl, (C1-C6)-alkyl, halo(C1-C6)-alkyl, N(R7)2, OR7, or OCOR7, R2 is hydrogen, (C1-C6)-alkyl, or halo-(C1-C6)-alkyl, R3 is hydrogen or halogen, R7 is hydrogen, (C1-C6)-alkyl, or (C1-C6)-haloalkyl, n is 0, 1 or 2, m is 0, 1, 2 or 3, and o is 0, 1, 2, 3, 4 or 5.