Substituted benzoyl derivatives as herbicides

A compound of the formula (I) or a salt thereof

• 17
• in which the radicals and indices are as defined below:
• R1, R2 independently of one another are hydrogen, mercapto, nitro, halogen, cyano, thiocyanato, C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, —OR4, OCOR4, OSO 2R4, S(O)nR4, SO2OR4, SO2N(R4)2, NR4SO2R4, NR4COR4, C1-C6-alkyl-S(O)nR4, C1-C6-alkyl-OR4, C1-C6-alkyl-OCOR4, C1-C6-alkyl-OSO2R4, C1-C6-alkyl-SO2OR4, C1-C6-alky-SO2N(R4)2 or C1-C6-alkyl-NR4COR4;
• R3 is hydrogen, C1-C6-alkyl, C2-C6-alkenyl or C2-C6-alkynyl;
• R4 is hydrogen, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl, phenyl or phenyl-C1-C6-alkyl, where the six last-mentioned radicals are substituted by s radicals selected from the group consisting of hydroxy, mercapto, amino, cyano, nitro, thiocyanato, OR3, SR3, N(R3)2, ═NOR3, OCOR3, SCOR3, NR3COR3, CO2R3, COSR3, CON(R3)2, C1-C4-alkyliminooxy, C1-C4-alkoxyamino, C1-C4-alkylcarbonyl, C1-C4-alkoxy-C2-C6-alkoxycarbonyl and C1-C4-alkylsulfonyl;
• Het is a fully saturated heterocyclic group whose ring atoms consist of carbon and oxygen atoms, where
• the total number of ring atoms is p,
• the number of oxygen atoms is r,
• the number of carbon atoms is (p-r) and
• Het may be substituted by n radicals R5;
• n is 0,1 or 2;
• p is 5,6 or 7;
• r is 1 or 2;
• s is 0, 1, 2 or 3;
• X is O or S(O)n;
• R5 is hydroxy, mercapto, amino, cyano, nitro, halogen, formyl, C1-C6-alkylamino, C1-C6-dialkylamino, C1-C6-alkoxycarbonyl, C1-C6-alkylcarbonyl, C1-C4-alkylcarbonyloxy, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylthio, C1-C6-haloalkylthio, C1-C6-alkoxy, C1-C6-haloalkoxy or R5 together with the carbon atom to which it is attached forms a carbonyl group;
• Q is a radical of group Q1 or Q2;
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• R6, R7 independently of one another are hydrogen, C1-C6-alkyl, C1-C6-haloalkyl or C3-C6-cyclopropyl;
• R8 is hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, phenylcarbonyl, phenylcarbonylmethyl, phenyloxycarbonyl or phenylsulfonyl, where the phenyl ring of the four last-mentioned radicals is substituted by s radicals selected from the group consisting of halogen, nitro, cyano, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy.