HERBICIDAL BENZOYLISOTHIAZOLES

摘要

4-benzoylisothiazoles have general formula (1), in which the substituents have the following meanings: X stands for oxygen or sulphur; R1 stands for hydrogen, alkyl, alkenyl, alkinyl, or for optionally substituted alkoxycarbonyl, aryl, heterocyclyl or hetaryl; R2 stands for hydrogen, alkyl, alkenyl, alkinyl, cycloalkyl or cycloalkenyl, whereas these radicals may bear one or several halogen, alkyl, alkenyl or alkinyl groups, or R2 stands for aryl, hetaryl or heterocyclyl; and R3 stands for alkyl, cycloalkyl or a radical of general formula (2), in which the substituents have the meanings indicated 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.