Fungicidal pyrazine derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 403/04 (2006.01) C07D 241/18 (2006.01) C07D 241/20 (2006.01) C07D 407/14 (2006.01) C07D 409/14 (2006.01) C07D 413/14 (2006.01) C07D 417/14 (2006.01)

Patent

CA 2598897

Compounds of Formula 1, and their N -oxides and agriculturally suitable salts, are disclosed as useful as fungicides (INSERT FORMULA I HERE) wherein R1 isNR4R5, N=CR19R21, OR6, G1 or G2; or C1-C8 alkyl, C2-C8 alkenyl, each optionally substituted; A is O, S or NR7; R2 is cyano, NR8 N=CR9R10, NC(=O)R30; or a 5- or 6-membered heteroaromatic ring, each ring or ring system optionally substituted; R3 is H, halogen, cyano, C1-C6 alkyl; J is C1-C8 alkyl or phenyl, optionally substituted; and R4, R5, R6, R7, R8, R9, R10, R19, R21, R30, G1 and G2 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and a method for controlling plant diseases caused by fungal plant pathogens which involves applying an effective amount of a compound of Formula 1.

La présente invention concerne des composés représentés par la formule (I), leurs N-oxydes et leurs sels adaptés à l'agriculture, tous convenant comme fongicides. Dans cette formule, R1 estNR4R5, N=CR19R21, OR6, G1 ou G2, ou C1-C8 alkyle, C2-C8 alcényle, tous éventuellement substitués; A est O, S ou NR7; R2 est cyano, NR8 N=CR9R10, NC(=O)R30, ou un noyau hétéroaromatique à 5 ou 6 segments, chaque noyau ou système de noyaux étant éventuellement substitué; R3 est H, halogène, cyano, C1-C6 alkyle; J est C1-C8 alkyle ou phényle, éventuellement substitué; et R4, R5, R6, R7, R8, R9, R10, R19, R21, R30, G1 et G2 sont tels que décrits dans le corps de la demande. L'invention concerne également des compositions contenant les composés représentés par la formule (I) et un procédé de lutte contre des maladies des plantes provoquées par des pathogènes fongiques des plantes, par application d'une quantité suffisante d'un composé représenté par la formule (I).

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