SUBSTITUTED 2-(3-ALKENYL-BENZOYL)-CYCLOHEXANE-1,3-DIONES

1. A 2-(3-alkenylbenzoyl)cyclohexane-1,3-dione of the formula I an agriculturally useful salts thereof wherein the substitutes have the following meanings in the formula I: R , R are hydrogen, nitro, halogen, cyano, thiocyanato, C1-C6 -alkyl, C1-C6 -haloalkyl, C1-C6 -alkoxy-C1-C6 -alkyl, C2-C6 -alkenyl, C2-C6 -alkynyl, -OR , -OCOR , -OSO2 R , -SH, -S(O)n R , -SO2OR , -SO2NR R , -NR SO2 R or -NR COR ; R is hydrogen, halogen, C1-C6 -alkyl, C1-C6 -haloalkyl, C1-C6 -alkoxy, C2-C6 -alkenyl, C2-C6 -alkynyl; R , R are hydrogen, nitro, halogen, cyano, thiocyanato, C1-C6 -alkyl, C1-C6 -haloalkyl, C3-C6 -cycloalkyl, C2-C6 -alkenyl, C4-C6 -cycloalkenyl, C2-C6 -alkynyl, C1 -C6-alkoxy, C1-C6 -alkylthio, C1-C6 -haloalkoxy, -COR , -CO2 R , -COSR , -CONR R , -C(R )=NR , -PO(OR )(OR ), C1-C4 -alkyl which has attached to it a radical from the following group: hydroxyl, -COR , -CO2 R , -COSR , -CONR R or -C(R )=NR ; heterocyclyl, heterocyclyl-C1-C4 -alkyl, phenyl, phenyl-C1-C4 -alkyl, hetaryl, hetaryl-C1-C4 -alkyl, it being possible for the six last-mentioned radicals can be substituted or R4 and R together form a C2-C6 -alkanediyl chain which can be optionally mono- to tetrasubstituted by C1-C4 -alkyl and/or can be optionally interrupted by oxygen or sulfur or by a nitrogen which is unsubstituted or substituted by C1-C4 -alkyl; n is 0, 1 or 2; R is hydrogen, C1-C6 -alkyl, C1-C6 -haloalkyl, C1-C6 -alkoxy-C2-C6 -alkyl, C3-C6 -alkenyl or C3-C6 -alkynyl; R is C1-C6 -alkyl or C1-C6 -haloalkyl; R is C1-C6 -alkyl, C1-C6 -haloalkyl, C1-C6 -alkoxy-C2-C6 -alkyl, C3-C6 -alkenyl or C3-C6 -alkynyl; R is hydrogen or C1-C6 -alkyl; R is hydrogen, C1-C6 -alkyl, C3-C6 -cycloalkyl, C1-C6 -haloalkyl, C3-C6 -alkenyl, C3-C6 -alkynyl, phenyl or benzyl, it being possible for the two last-mentioned radicals to be partially or fully halogenated and/or to have attached to them one to three radicals from amongst the following group: nitro, cyano, C1-C4 -alkyl, C1-C4 -haloalkyl, C1-C4 -alkoxy, C1-C4 -haloalkoxy, C1-C4 -alkylcarbonyl or C1-C4 -alkoxycarbonyl; R is hydrogen, C1-C6 -alkyl, C3-C6 -alkenyl or C3-C6 -alkynyl; or R and R together form a C2-C6 -alkanediyl chain which optionally can be mono- to tetrasubstituted by C1-C4 -alkyl and/or optionally can be interrupted by oxygen or sulfur or by a nitrogen which is unsubstituted or substituted by C1-C4 -alkyl; R is hydrogen, C1-C6 -alkyl, C1-C6 -haloalkyl, C1-C6 -alkoxy, C1-C6 -alkoxycarbonyl, C3-C6 -cycloalkyl, C2-C6 -alkenyl, C2-C6 -alkynyl, phenyl