Triketone derivatives and herbicidal compositions for paddy...

Details Triketone derivatives and herbicidal compositions for paddy... Triketone derivatives and herbicidal compositions for paddy...

A - Human Necessities

01

N

A01N 43/18 (2006.01) C07D 335/06 (2006.01) C07D 409/06 (2006.01)

Patent

CA 2371859

Triketone derivatives of general formula (I) or salts thereof; and herbicides for lowland fields characterized by containing at least one of these compounds (wherein Y1, Y2, Y3, n, p, R1, R2, R3 and R4 are each as defined in the description). The triketone derivatives and salts thereof and the herbicides cause little chemical damage to paddy rice plants and can control various lowland weeds, even in a small dose.

La présente invention concerne des dérivés tricétone représentés par la formule générale (I) ou certains de leurs sels, et des herbbicides de rizière caractérisés en ce qu'ils contiennent l'un au moins de ces composés. Dans cette formule, Y?1¿, Y?2¿, Y?3¿, n, p, R?1¿, R?2¿, R?3¿ et R?4¿ sont tels que définis dans la description. Chimiquement, ces dérivés tricétone et leurs sels, ainsi que les herbicides considérés, sont relativement inoffensifs pour les plantes de culture des rizières, tout en étant relativement efficaces contre diverses plantes nuisibles des rizières, même à faible dose.

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