- HERBICIDAL COMPOSITIONS
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The present invention provides compositions comprising herbicidally active compounds (A) and (B), where (A) represents one or more compounds of the general formula (I) or agrochemically compatible salts thereof [component (A)], and (B) represents one or more herbicides [component (B)]. The application further relates to a method and to the use of the herbicidal composition according to the invention for controlling harmful plants or for regulating growth.
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- Method for producing a solid herbicide formulation
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The invention relates to a method for producing a solid herbicide formulation containing a) a herbicide from the group of sulfonylurea, or the salts thereof which are useful in the agricultural domain, b) optionally at least one other herbicide, c) optionally a safener, and d) at least one formulation adjuvant. A suspension is formed in water, consisting of the sulfonylurea a), optionally at least one other herbicide b), optionally a safener c) and at least one formulation adjuvant d). The suspension is adjusted to a pH value between 6.5 and 8 by adding an acid or a base, and is then dried to obtain the solid formulation.
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- Process for the preparation of 4,6-disubstituted 2-isocyanatopyrimidines and their use as intermediates for active compound syntheses
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Isocyanates of the formula (I) in which X and Y are defined as in formula (I) of claim 1 can be prepared by reacting a compound of the formula (II) or its salts in which X and Y are defined as in formula (I), with 1 to 6 mol of phosgene per mole of compound of the formula (II), in the presence of 2 to 3.5 molar equivalents of a base per mole of compound of the formula (II) and in the presence of an aprotic organic solvent at a reaction temperature in the range from ?30 to +60° C. to give the compound of the formula (I). The compounds (I) can be converted by reaction with nucleophiles to give addition products, such as carbamates, ureas and sulfonylureas and corresponding products, e.g. herbicidal sulfonylureas.
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- Process for the preparation of sulfonylureas
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Herbicidal sulfonylureas of the formula I, STR1 in which X is --O--, --O--NR2 -- or --SO2 --NR2 --, Y is --N-- or CH, R1 is (substituted) alkyl, (substituted) alkenyl or (substituted) alkynyl, or else, where X=O, (substituted) phenyl, R2 is H, alkyl, alkenyl, alkynyl or cycloalkyl, R3, R4 are H, (substituted) alkyl or (substituted) alkoxy, halogen, alkylthio, alkylamino or dialkylamino and R5, R6 are H or alkyl, and their salts with acids or bases, are prepared by reacting compounds of the formula II STR2 with compounds of the formula III STR3
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- Heterocyclic 2-alkoxyphenoxysulfonylureas and the use thereof as herbicides or plant growth regulators
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Compounds of the formula I or salts thereof STR1 where R1 is ethyl, propyl or isopropyl, R2 is halogen, NO2, CF3, CN, alkyl, alkoxy, alkylthio or alkoxycarbonyl, n is 0, 1, 2 or 3, Y is O or S, R3 is
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