4-benzoylisoxazole herbicides

Details 4-benzoylisoxazole herbicides 4-benzoylisoxazole herbicides

C - Chemistry, Metallurgy

07

D

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

Patent

CA 2114696

The invention relates to 4-benzoylisoxazole derivatives of formula (I): (see formula I) wherein: R represents the hydrogen atom or a group -CO2R4; R1 represents alkyl, haloalkyl or optionally substituted cycloalkyl; R2 represents halogen, optionally halogenated alkyl, alkenyl or alkynyl, alkyl substituted by one or more groups -OR5; or a group selected from nitro, cyano, -CO2R5, -S(O)p R6, -O(CH2)m OR5, -COR5, -NR61R62, -N(R8)SO2R7, -OR5, -OSO2R7 and -(CR9R10)t-S(O)q R7; R3 represents -S(O)q R7; X represents -(CR9R10)t-; n represents zero or an integer from one to four; R4 represents alkyl or haloalkyl R5 represents optionally halogenated alkyl, alkenyl or alkynyl; R6, R61 and R62, which may be the same or different, each represents alkyl, haloalkyl or optionally substituted phenyl; R7 represents optionally halogenated alkyl, alkenyl or alkynyl, or optionally subtituted phenyl or benzyl; R8 represents hydrogen or optionally halogenated alkyl, alkenyl or alkynyl; R9 and R10, which may be the same or different, each represents hydrogen, alkyl, haloalkyl or optionally substituted phenyl p represents zero, one or two; q represents zero, one or two; m represents 1, 2 or 3; t represents an integer from one to four; or an agriculturally acceptable salt thereof; and to their use as herbicides.

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