Fungicidal composition containing carboxylic acid amide...

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 213/81 (2006.01) A01N 43/40 (2006.01) A01P 3/00 (2006.01) C07D 405/12 (2006.01)

Patent

CA 2631532

Conventional fungicidal compositions have had practical problems such that either a preventive effect or a curative effect is inadequate, the residual effect tends to be inadequate, or the controlling effect against plant diseases tends to be inadequate depending upon the application site, and a fungicidal composition to overcome such problems has been desired. The present invention provides a fungicidal composition containing a carboxylic acid amide derivative of the formula (I) or a salt thereof, as an active ingredient: wherein A is phenyl which may be substituted, benzodioxolanyl which may be substituted, or benzodioxanyl which may be substituted; B is 2- or 3-pyridyl which may be substituted; each of R1 and R2 is alkyl, or R1 and R2 may together form a 3- to 6-membered saturated carbon ring, provided that when B is 3-pyridyl which may be substituted, A is phenyl substituted by at least two substituents.

Les compositions fongicides classiques posent certains problèmes pratiques caractérisés en ce que les effets préventif, curatif, et résiduel desdites compositions peuvent se révéler inefficaces, tout comme l'effet de lutte contre des maladies de plantes en fonction du site d'application. Une composition fongicide apportant une solution à ces problèmes s'avère ainsi nécessaire. L'invention propose une composition fongicide contenant un dérivé d'amide d'acide carboxylique de formule (I) ou un sel de celui-ci, en tant qu'ingrédient actif. Dans ladite formule : A représente phényle pouvant être substitué, benzodioxolanyle pouvant être substitué, ou benzodioxanyle pouvant être substitué ; B représente 2- ou 3-pyridyle pouvant être substitué ; R1 et R2 représentent chacun alkyle, ou R1 et R2 peuvent former ensemble un cycle carbone saturé comprenant entre 3 et 6 éléments, sous réserve que lorsque B représente 3-pyridyle pouvant être substitué, A représente phényle substitué par au moins deux substituants.

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