Herbicidal pyrazine derivatives

Details Herbicidal pyrazine derivatives Herbicidal pyrazine derivatives

C - Chemistry, Metallurgy

07

D

C07D 241/24 (2006.01) A01N 43/60 (2006.01) C07D 413/04 (2006.01) C07D 417/04 (2006.01)

Patent

CA 2195996

Substituted pyrazine derivatives are disclosed of general formula I, wherein n, X and Z have the following meanings: X represents an oxygen or sulphur atom, or a sulphoxide or sulphone group; n is 0, 1 or 2; Z is a group (a), (b), (c) or (d), wherein Y represents oxygen or sulphur, R6 represents hydrogen, alkyl, alkoxy, a halogen or alkyl halide, and p is 0 or 1; and R1, R2, R3, R4 and R5 have the meanings shown in claim 1. Also disclosed are salts of compounds (I) commonly used in agriculture.

L'invention concerne des dérivés pyraziniques substitués de formule générale (I) dans laquelle n, X et Z ont la notation suivante: X représente un atome d'oxygène ou de soufre, ou bien un groupe sulfoxide ou sulfone; n vaut 0, 1 ou 2; Z est un groupe (a), (b), (c) ou (d), où Y représente oxygène ou soufre, R?6¿ représente hydrogène, alkyle, alcoxy, halogène ou halogénure d'alkyle, et p vaut 0 ou 1; et R?1¿, R?2¿, R?3¿, R?4¿ et R?5¿ ont les notations indiquées dans la revendication I. L'invention concerne également des sels des composés (I), couramment utilisés en agriculture.

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