Salts of pyridylsulfonylureas as herbicides and plant growth...

Details Salts of pyridylsulfonylureas as herbicides and plant growth... Salts of pyridylsulfonylureas as herbicides and plant growth...

C - Chemistry, Metallurgy

07

D

C07D 401/12 (2006.01) A01N 47/36 (2006.01) C07D 401/14 (2006.01) C07D 413/14 (2006.01) C07D 521/00 (2006.01)

Patent

CA 2073135

1 HOE 91/F 211 ABSTRACT OF THE DISCLOSURE: Salts of pyridylsulfonylureas as herbicides and plant growth regulators, their preparation and their use Compounds of the formula (I) Image (I) in which R1 is H or (in each case substituted) alkyl, alkenyl, alkynyl, alkylsulfonyl, phenylsul- fonyl, alkoxy or alkylsulfonyl, R2 is (substituted) alkyl, (substituted) phenyl or dialkylamino, or R1 and R2 together are a (substituted) C3-C4-alkylene chain, R3 is H, alkyl, haloalkyl, Hal, NO2, CN, alkoxy, haloalkoxy, alkylthio, alkoxyalkyl, alkoxy- carbonyl, mono- or dialkylamino, alkylsulfonyl, alkylsulfinyl, (substituted) amidosulfonyl or (substituted) carboxamide, R4 is H or CH3, n = 0 or 1, m = 1 or 2, A is 4,6-disubstituted pyrimidinyl (see claim 1), M is a monovalent or divalent cation (see claim 1), are suitable as herbicides and plant growth regulators. They are prepared, for example, from the corresponding sulfonylurea by reaction with an alcoholate, carbonate or amine.

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