Herbicidal compounds

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 471/04 (2006.01) A01N 43/90 (2006.01) A01P 13/00 (2006.01)

Patent

CA 2712391

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 A1, A2, A3, A4, R3, R4 and R5 are as defined in claim 1; or a salt or N-oxide thereof. Furthermore, the present invention relates to processes for preparing compounds of formula (I), to intermediates used in the preparation of compounds of formula (I), to herbicidal compositions comprising compounds of formula (I) and to certain novel pyridopyridines, pyridodiazines and pyridotriazines.

L'invention concerne un procédé de lutte contre des plantes ou d'inhibition de la croissance de plantes, consistant à appliquer à ces plantes ou sur leur emplacement une quantité efficace sur le plan herbicide d'un composé représenté par la formule (I): dans laquelle A1, A2, A3, A4, R3, R4 et R5 sont comme définis dans la revendication 1; ou un de ses sels ou N-oxyde. Elle concerne, de plus, des procédés servant à préparer des composés représentés par la formule (I), des intermédiaires utilisés dans la préparation de composés représentés par la formule (I), des compositions herbicides contenant des composés représentés par la formule (I), ainsi que certaines nouvelles pyridopyridines, pyridodiazines et pyridotriazines.

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