Pyridine-2,3-dicarboxylic acid diamide derivatives and...

C - Chemistry – Metallurgy – 07 – D

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C07D 213/82 (2006.01) A01N 43/40 (2006.01) A01N 43/42 (2006.01) C07D 213/89 (2006.01) C07D 401/12 (2006.01) C07D 405/12 (2006.01) C07D 409/12 (2006.01)

Patent

CA 2201437

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. Image (I) [wherein R1 represents one to three substituents such as H, halogen, cyano, nitro, (halo)alkyl, (halo)alkoxy, (halo)alkylthio, (C3-6)cycloalkyl, alkenyl, alkynyl, substituted phenyl, substituted phenoxy, etc. and R1 may represent alkylene or alkenylene together with an adjacent carbon atom; R2 represents H, halogen, cyano, nitro, (halo)alkyl or (halo)alkoxy; R3 represents H or alkyl; R4 and R5 each represent H, (halo)alkyl, cycloalkyl, substituted cycloalkylalkyl, etc.; and n represents an integer of 0 or 1]. The present compounds exhibit excellent effect for controlling paddy field weeds and the like.

Dérivés de diamide de l'acide pyridine-2,3-dicarboxylique, représentés par la formule (I) et herbicides qui en renferment comme ingrédient actif. Image (I) où R1 représente un ou trois substituants, comme H, un halogène, un groupe cyano, nitro, (halo)alkyle, (halo)alcoxy, (halo)alkylthio, cycloalkyle C3-6, alcényle, alcynyle, phényle avec substitution, phénoxy avec substitution, etc.; R1 peut représenter un alkylène ou un alcénylène avec un atome de carbone adjacent; R2 représente H, un halogène, un groupe cyano, nitro, (halo)alkyle, (halo)alcoxy; R3 représente H ou un alkyle; R4 et R5 représentent chacun H, un (halo)alkyle, un cycloalkyle, un cycloalkylalkyle avec substitution, etc.; n représente 0 ou 1. Les présents composés permettent d'éliminer les mauvaises herbes des rizières et d'autres plantes indésirables.

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