Sulphonamide herbicides

Details Sulphonamide herbicides Sulphonamide herbicides

C - Chemistry, Metallurgy

07

D

260/249, 260/259

C07D 239/28 (2006.01) A01N 43/54 (2006.01) A01N 43/66 (2006.01) C07D 239/34 (2006.01) C07D 239/60 (2006.01) C07D 251/12 (2006.01) C07D 251/30 (2006.01) C07D 409/12 (2006.01)

Patent

CA 2022291

T 640 FF ABSTRACT SULPHONAMIDE HERBICIDES Compounds of the formula Image (I) in which A is nitrogen or CR5; R1, R2 and R5 each independently are hydrogen, or halogen, formyl, cyano, carboxy or azido, or optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkenyloxy, alkynyloxy, aryloxy, alkylthio, alkenylthio, alkynylthio, arylthio, alkylcarbonyl, alkoxycarbonyl, amino, aminoxy or dialkyliminoxy; R3 is a hydrogen, or optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic, aralkyl or aryl; and R4 optionally substituted alkyl, aralkyl, aryl or heterocyclyl; and salts thereof, have herbicidal properties. The invention also provides processes for their preparation and their use as herbicides.

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