| abstract |
The present invention provides a pyridine-2,3-dicarboxylic acid diamide derivatives represented by the following formula (I) and herbicides containing them as an active ingredient.n [wherein R 1 represents one to three substituents such as H, halogen, cyano, nitro, (halo)alkyl, (halo)alkoxy, (halo)alkylthio, (C 3-6 )cycloalkyl, alkenyl, alkynyl, substituted phenyl, substituted phenoxy, etc. and R 1 may represent alkylene or alkenylene together with an adjacent carbon atom; R 2 represents H, halogen, cyano, nitro, (halo)alkyl or (halo)alkoxy; R 3 represents H or alkyl; R 4 and R 5 each represent H, (halo)alkyl, cycloalkyl, substituted cycloalkylalkyl, etc.; and n represents an integer of 0 or 1]. n The present compounds exhibit excellent effect for controlling paddy field weeds and the like. |