139996-40-0Relevant articles and documents
Herbicidal sulfonylureas and their use
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, (2008/06/13)
Substituted sulfonylureas of the formula I STR1 where n and m are each 0 or 1, R1 is hydrogen, alkyl alkenyl or alkynyl, R2 is halogen or trifluoromethyl when m is 0, or is alkyl, alkenyl or alkynyl when m is 1, or is trifluoromethyl or chlorodifluoromethyl when X is O or S and m is 1, X is O, S or N-R4, R4 is hydrogen or alkyl, R3 is hydrogen, halogen, alkyl, haloalkyl or alkoxy, A is haloalkyl, halogen, cyano, nitro, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl or a radical STR2 B is oxygen or an alkylimino group N-R6 ; R5 is hydrogen, unsubstituted or substituted alkyl or unsubstituted or substituted cycloalkyl or is alkenyl or alkynyl and R6 is hydrogen or alkyl or, together with R5, forms a C4 -C6 -alkylene chain in which a methylene group may be replaced by an oxygen atom or a C1 -C4 -alkylimino group, and their environmentally compatible salts, processes and intermediates for the preparation of the compounds I and their use as herbicides and bioregulators.