2′-Phenyl-2,4′-bipyridine-3-carboxylic acid derivatives of the general formula (I) are described as herbicides.
In this formula (I), R
1
to R
5
are radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen, nitro, cyano and formyl.
2-苯基-2,4'-联
吡啶-3-
羧酸衍
生物的一般式(I)被描述为
除草剂。在这个公式(I)中,R1到R5是诸如氢、烷基等有机基团和其他基团如卤素、硝基、
氰基和甲酰基等基团。