摘要：

The invention concerns substituted benzothiazols of general formula (I) and their salts. In the formula: X, X = O or S; R = H, NH2, C1-C6 alkyl or C1-C6 alkyl halide; R = H, halogen, C1-C6 alkyl, C1-C6 alkyl halide, C1-C6 alkythio, C1-C6 alkylsulphinyl or C1-C6 alkylsulphonyl; R = H, halogen or C1-C6 alkyl; R = H or halogen; R = CN, halogen, C1-C6 alkyl, C1-C6 alkyl halide, C1-C6 alkoxy or C1-C6 alkoxy halide; Y = a chemical bond, -O-, -S-, -SO- or -SO2-; R = hydrogen, CN, halogen, C3-C6 cycloalkyl, C1-C6 alkyl halide, C3-C6 alkenyl, C3-C6 alkyl halide, C3-C6 alkinyl or C1-C6 alkyl, wherein the said cycloalkyl, alkyl, alkenyl and alkinyl groups can be substituted by CN, C1-C6 alkoxy, C1-C6 alkylthio, C1-C6 alkoxycarbonyl, C1-C6 alkylaminocarbonyl, di(C1-C6 alkyl)aminocarbonyl, C1-C6 alkylcarbonyloxy, C1-C6 alkoxy halide, C1-C6 alkylthio halide or C3-C6 cycloalkyl, provided that R can mean cyano only when Y stands for a chemical bond, oxygen or sulphur, and R can mean halogen only when Y stands for a chemical bond. The invention further concerns the use of these substances as herbicides and for the desiccation and abscission of plants.

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