Herbicidal heterocyclically substituted benzoylisothiazoles

Details Herbicidal heterocyclically substituted benzoylisothiazoles Herbicidal heterocyclically substituted benzoylisothiazoles

C - Chemistry, Metallurgy

07

D

C07D 417/10 (2006.01) A01N 43/80 (2006.01) A01N 43/82 (2006.01) A01N 43/84 (2006.01) A01N 43/86 (2006.01) A01N 47/20 (2006.01) A01N 47/22 (2006.01) C07D 275/02 (2006.01) C07D 417/14 (2006.01)

Patent

CA 2251601

4-benzoylisothiazoles have the general formula (1), in which the substituents have the following meanings: X stands for oxygen or sulphur; R1 stands for hydrogen, alkyl, alkenyl, alkinyl, optionally substituted alkoxycarbonyl, aryl, heterocyclyl or hetaryl; R2 stands for hydrogen, alkyl, alkenyl, alkinyl, cycloalkyl or cycloalkenyl, whereas these radicals can bear one or several halogen, alkyl, alkenyl or alkinyl groups, or R2 stands for aryl, hetaryl or heterocyclyl; R3 stands for a radical of general formula (2), in which Z and the R4, R5, R6 and R7 substituents have the meanings given in claim 1. Also disclosed are the salts commonly used in agriculture of the 4- benzoylisothiazoles of general formula (1), a process for preparing the same and their use as herbicides.

L'invention concerne des benzoylisothiazoles-4 de formule générale (1), des sels usuels en agriculture des benzoylisothiazoles-4 de formule générale (1), leur procédé de préparation et leur utilisation comme herbicides. Dans la formule, les substituants ont la signification suivante: X désigne oxygène ou soufre; R?1¿ désigne hydrogène, alkyle, alcényle, alcinyle, ou l'un des radicaux suivants éventuellemnt substitués: alcoxycarbonyle, aryle, hétérocyclyle ou hétaryle; R?2¿ désigne hydrogène, alkyle, alcényle, alcinyle, cycloalkyle ou cycloalcényle, ces radicaux pouvant porter un ou plusieurs des groupes suivants: halogène, alkyle, alcényle ou alcinyle, ou R?2¿ désigne aryle, hétaryle ou hétérocyclyle; et R?3¿ désigne un radical de formule générale (2), dans laquelle Z et les substituants R?4¿, R?5¿, R?6¿ et R?7¿ ont la signification donnée dans la première revendication.

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