Pyrazol-4-yl-benzoyl derivatives and their use as herbicides

摘要

Pyrazol-4-ylbenzoyl derivativeswhere the substituents L, M, X, Y and n have the meanings given in claim 1 andQ is a pyrazole ring, linked in the 4-position, of the formula IIwhereR15 is C1-C4-alkyl,R16 is hydrogen, C1-C4-alkyl or C1-C4-haloalkyl andR17 is hydrogen, C1-C4-alkylsulfonyl, phenylsulfonyl or alkylphenylsulfonyl,where, in the event that Y=C=O, X is other than NR23,agriculturally useful salts, a process for their preparation, and their use as herbicides.