4 benzoyl isoxazole derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 261/06 (2006.01) A01N 43/80 (2006.01) C07D 261/08 (2006.01) C07D 261/10 (2006.01) C07D 261/18 (2006.01)

Patent

CA 2056044

4-Benzoyl isoxazole derivatives of the formula I: Image wherein: R represents alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, optionally substituted cycloalkyl, -CO2R3,-COR5,cyano,nitro, -CONR31R4 or a halogen atom; R1 represents :- hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl or optionally substituted cycloalkyl R2 represents :- halogen, R5, -SR5, -SOR5, -SO2R5, -SO2NR31R4,-CO2R3, -COR5, -CONR31R4, -CSNR31R4, -OR5, a nitro group, a cyano group, a group -O(CH2)q-OR5 or alkyl substituted by OR5; R3, R31 and R4, which may be the same or different, each represents :- hydrogen, alkyl or haloalkyl; R5 represents alkyl or haloalkyl; n represents an integer from 1 to 5; and q represents an integer from 1 to 3; and agriculturally acceptable salts thereof and their use as herbicides is described.

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