| abstract |
4-(3-Alkenylbenzoyl)pyrazoles of the formula I where: R1 and R2 are each hydrogen, nitro, halogen, cyano, thiocyanato, alkyl, haloalkyl, alkoxyalkyl, alkenyl, alkynyl, -OR6, -OCOR7, -OSO2R7, -SH, -S(O)nR8, -SO2OR6, -SO2NR6R9, -NR9SO2R7 or -NR9COR7; R3 is hydrogen, halogen, alkyl, haloalkyl, alkoxy, alkenyl, alkynyl; R4 and R5 are each hydrogen, nitro, halogen, cyano, thiocyanato, alkyl, haloalkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, alkylthio, haloalkoxy, -COR10, -CO2R10, -COSR10, -CONR10R11, -C(R12)=NR13, -PO(OR10)(OR11); or alkyl, heterocyclyl, heterocyclylalkyl, phenyl, phenylalkyl, hetaryl or hetarylalkyl with or without substitution; or R4 and R5 together form an alkanediyl chain which may be substituted and/or interrupted by a hetero atom; Q is a substituted pyrazole which is linked in position 4; and agriculturally useful salts thereof; processes for preparing the compounds of the formula I; compositions comprising them; and the use of these derivatives or of compositions comprising them for controlling undesirable plants. |