2-benzoyl-cyclohexan-1,3-diones, their preparation method and use

摘要

The invention concerns 2-benzoyl-cyclohexan-1,3-diones of formula (I), in which R1, R2 stand for hydrogen, nitro, halogen, cyano, rhodano, alkyl, halogen alkyl, alkoxyalkyl, alkenyl, alkinyl, -OR5, -OCOR6, -OSO2R6, -SH, -S(O)nR7, -SO2OR5, -SO2NR5R8, -NR8SO2R6 or -NR8COR6; R3 stands for hydrogen, alkyl, halogen alkyl or alkinyl; R4 stands for hydrogen, optionally substituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkinyl, -COR9, -CO2R9, -COSR9 or -CONR8R9; X stands for oxygen or sulphur; m equals 0 or 1; n equals 0, 1 or 2; R5 stands for hydrogen, alkyl, halogen alkyl, alkoxyalkyl, alkenyl or alkinyl; R6 stands for alkyl or halogen alkyl; R7 stands for alkyl, halogen alkyl, alkoxyalkyl, alkenyl or alkinyl; R8 stands for hydrogen or alkyl; R9 stands for alkyl, alkenyl, alkinyl, phenyl or benzyl; R10 stands for alkyl, halogen alkyl, alkenyl or alkinyl; Q stands for optionally substituted cyclohexan-1,3-dione ring linked in position 2, whereas m equals 1 when R3 stands for hydrogen. Also disclosed are the salts of these compounds useful in agriculture; processes and intermediate products for preparing the compounds of formula (I), agents containing the same and the use of these derivatives or agents containing the same for controlling undesirable plants.