Sulfonylureas and sulfonylthioureas, the preparation...

Details Sulfonylureas and sulfonylthioureas, the preparation... Sulfonylureas and sulfonylthioureas, the preparation...

C - Chemistry, Metallurgy

07

D

260/259, 260/249

C07D 403/12 (2006.01) A01N 47/36 (2006.01)

Patent

CA 1222752

Case 5-13938/= Novel sulfonylureas and sulfonylthioureas, the preparation thereof, and method of use thereof as herbicides and/or growth regulators ABSTRACT The invention relates to novel sulfonylureas of the formula I Image (I) wherein R1 is hydrogen or C1-C5alkyl, R2 and R3, each independently of the other, are hydrogen, C1-C5alkyl, C1-C5alkoxy, C1-C5alkylthio, C1-C5haloalkyl,halogen,C1-C5haloalkyl- thio, C1-C4alkylamino, C1-C4dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms, Z is oxygen or sulfur, E is -CH= or -N=, and Q is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom, and the salts thereof. A process for the preparation of the novel compounds and the use there-of are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/ or for selectively influencing plant growth.

428445

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