- Novel 4'(benzisothiazo-5-yloxy)-phenylurea derivatives, their preparation and their use as herbicides
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A 4'-(Benzisothiazol-5-yloxy)-phenylureas of the formula STR1 where R1 and R2 are each a saturated straight-chain or branched aliphatic radical of 1 to 10 carbon atoms, an unsaturated straight-chain or branched aliphatic radical of 3 to 10 carbon atoms, or an araliphatic or aromatic radical which may be substituted by 1, 2 or 3 C1 -C4 -alkyl, C1 -C4 -alkoxy, cyano, halogen, nitro, monofluoromethyl or trifluoromethyl groups, or are each alkoxy of 1 to 6 carbon atoms, R2 may furthermore be hydrogen, or R1 and R2, together with the nitrogen atom, may be members of a 5-membered or 6-membered ring which may contain further nitrogen and/or oxygen atoms as heteroatoms, and X is hydrogen, trifluoromethyl or chlorine, processes for their preparation, and herbicides containing ureas of the formula I as active ingredients.
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