New benzoylpyrazolyl derivatives useful as pre- and post-emergent herbicides for protection of crops and application to non-agricultural surfaces

摘要

Benzoylpyrazolyl derivatives (I) and their salts are new. Benzoylpyrazolyl derivatives of formula (I) and their salts are new: X = O, NH, 1-6C alkylamino or CR6R7; Y = O, S, NH or 1-6C alkylamino; R1 = NO2, halogen or 1-4C alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfonyl or haloalkylsulfonyl; R2, R3, R6, R7 = H or 1-4C alkyl or haloalkyl; R4 = halogen, NO2 or 1-4C haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfonyl or haloalkylsulfonyl; R5 = H, halogen or 1-4C alkyl; R8 = OH, 1-6C alkoxy, 3-6C alkenyloxy, 1-6C alkylsulfonyloxy, (1-6C alkyl)carbonyloxy, phenylsulfonyloxy or benzoyloxy (where the phenyl groups are optionally fully or partially halogenated and/or optionally substituted by 1-3 NO2, CN or 1-4C alkyl, haloalkyl, alkoxy or haloalkoxy groups); R9, R10 = 1-4C alkyl; and R11, R12 = H or 1-4C alkyl. Provided that the total number of C atoms in R9-R11 is seven or less.