Pyrido [2,3-b] pyrazine derivatives useful as herbicidal...

Details Pyrido [2,3-b] pyrazine derivatives useful as herbicidal... Pyrido [2,3-b] pyrazine derivatives useful as herbicidal...

C - Chemistry, Metallurgy

07

D

C07D 471/04 (2006.01) A01N 43/60 (2006.01)

Patent

CA 2657282

The present invention relates to a method of controlling plants or inhibiting plant growth which comprises applying to the plants or to the locus thereof a herbicidally effective amount of a compound of formula (I) wherein R1, R2, R3, R4 and R5 are as defined in claim 1; or salts or N-oxides thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to certain novel pyrido[2,3-b]pyrazines.

L'invention concerne un procédé permettant de lutte contre des végétaux ou d'inhiber leur croissance qui consiste à appliquer à ces végétaux ou à leur site une dose herbicide efficace d'un composé de formule (I), dans laquelle R1, R2, R3, R4 et R5 sont tels que définis dans la Revendication 1; ou des sels ou des N-oxydes de ce composé. En outre, l'invention concerne des procédés de préparation de composés de formule (I), des compositions herbicides comprenant des composés de formule (I) et certaines pyrido[2,3-b]pyrazines nouvelles.

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