Pyrazole derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 409/06 (2006.01) A01N 43/56 (2006.01) A01N 47/06 (2006.01) A01N 47/18 (2006.01) C07D 333/52 (2006.01) C07D 335/06 (2006.01)

Patent

CA 2212800

Novel pyrazole derivatives represented by general formula (I) or salts thereof, and herbicides containing the same as the active ingredient capable of selectively controlling in a small dose both of gramineous and herbaceous weeds by both of foliage and soil treatments without damaging useful crops such as corn, wheat and barley, wherein R1, R2, X1, X2, X3, X4, X5, X6, X7, X8 and n are each as defined in claim 1.

La présente invention concerne des dérivés de pyrazole représentés par la formule générale (I) ou des sels de ces dérivés. L'invention concerne également des herbicides dans lesquels ces produits interviennent comme principes actifs. En effet, ces produits permettent, à faible dose, le désherbage sélectif des graminées et des herbacées par traitements des feuilles et du sol, sans dommage pour les plantes de culture utiles telles que le blé, le froment et l'orge. Dans la formule générale (I), R?1¿, R?2¿, X?1¿, X?2¿, X?3¿, X?4¿, X?5¿, X?6¿, X?7¿, X?8¿ et n sont conformes à la définition de la 1?ère¿ revendication.

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