- Arylsulfonylureas, processes for their preparation, and their use as herbicides and growth regulators
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The invention relates to novel intermediates for the preparation of a certain group of novel phenylsulfonylurea herbicides, which herbicides are particularly advantageous for use in crop protection. The novel intermediate compounds are of the formula II STR1 and of the formula VI, STR2 as defined in the specification and claims. The intermediate compounds may be used to prepare herbicidal and plant growth regulating compounds of the formula I or salts thereof: STR3 as defined in the specification. The herbicides so obtained are particularly suitable for selectively controlling weeds.
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- Substituted sulfonylalkylsulfonylureas and their use as herbicides and plant growth regulators
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Compounds of formula (I) or salts thereof, STR1 in which J is a radical of the formula R1 SO2 --CR2 R3 --, R4 R5 N--SO2 --CR2 R3 --, or STR2 and wherein the radicals R1, R2, R3, R6, R7, R8, R*, A, W, m, n and 0 are defined as set forth in the specification, are suitable as selective herbicides and plant growth regulators.
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- Alkyl- and alkenylsulfonylureas which are substituted in the heterocycle, and their use as herbicides or plant growth regulators
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Compounds of the formula I, their stereoisomers or their salts STR1 wherein A denotes >C(R4)2 or >C=C(R5)2 ; R1 denotes H, an optionally substituted aliphatic or cycloaliphatic radical, forfuryl, tetrahydrofurfuryl or (substituted) phenyl; R2 denotes H, alkyl, alkenyl, alkynyl or alkoxy; R3 denotes a radical of the formulae STR2 X denotes O, S or NR12 and Y denotes O or S, possess excellent herbicidal and plant-growth regulating properties.
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- Pyrazolesulfonylurea derivatives, preparation thereof, herbicide containing said derivative as active ingredient and herbicidal method by use thereof
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Disclosed is a novel pyrazolesulfonylurea derivative represented by the formula (I), preparation thereof, a herbicide containing said derivative as an active ingredient and a herbicidal method by use thereof. STR1 (wherein A, B, C, D, X, Y and Z are as defined in the specification).
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- Herbicidal sulfonamides
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Compounds of the formula: wherein, R1 is H or CH3; and, R2 is H, F, Cl or CH3;, exhibit herbicidal activity, especially selective activity on rape. The compounds may be made e.g. by reacting the appropriate arylsulfonyl isocyanate with the appropriate aminotriazine.
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- Herbicidal sulfonamides
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Novel N-(heterocyclicaminocarbonyl) substituted thiophene-, furan- and pyrrolesulfonamides, such as N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-6,7-dihydro-5H-thieno-[3,2-b]thiopyran-3-sulfonamide, 4,4-dioxide and N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-6,7-dihydro-5H-thieno[3,2-b]thiopyran-3-sulfonamide, 4,4-dioxide and their method-of-use as herbicides are described.
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- Herbicidal ortho-alkyl- and ortho-alkenyl-substituted benzenesulfonamides
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A class of ortho-alkyl- and ortho-alkenyl-substituted benzenesulfonamides are useful as general or selective pre-emergent or post-emergent herbicides and as plant growth regulants.
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- Herbicidal N-[pyrimidine aminocarbonyl]isothiazole sulfonamides
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Certain N-[(heterocyclic)aminocarbonyl]isothiazolesulfonamides, such as methyl 4-[[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]aminosulfonyl]-3-isothiazolecarboxylate, are useful as herbicides and/or plant growth regulants.
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- Herbicidal phenoxy esters of N-(heterocyclic)aminocarbonyl)sulfamic acid
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Compounds of the class of phenoxy esters of N-[(heterocyclic)aminocarbonyl]sulfamic acid, such as N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]sulfamic acid. 2-(trifluoromethylthio)phenyl ester, useful as pre-emergent or post-emergent herbicides.
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- Herbicidal sulfonamides
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This invention pertains to benzenesulfonamides and their use as agricultural chemicals.
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- Herbicidal thiophenesulfonamides
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This invention covers thiophenesulfonylureas of Formula I, agriculturally suitable compositions containing them, and their method-of-use as general and/or selective preemergent and/or postemergent herbicides or plant growth regulants. The compound N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-3-chloro-2-thiophenesulfonamide is typical of this cla
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- Herbicidal sulfonamides
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N-(1,3,5-triazin-2-ylaminocarbonyl) arylsulfonamides, such as N-[(4,6-dimethyl-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide, are useful for the regulation of plant growth and as herbicides, particularly for controlling nutsedge.
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