Beta-lactams and their use as herbicides

A compound of formula (I)

• wherein the substituents have the following meanings:
• R1 hydrogen, (C1-C3)-alkyl, (C3-C4)-cycloalkyl, (C1-C3)-haloalkyl, (C2-C3)-alkenyl, (C2-C3)-haloalkenyl, (C2-C3)-alkynyl, (C2-C3)-haloalkynyl, (C1-C3)-alkoxy-(C1-C3)-alkyl, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy;
• R2 hydrogen, halogen, hydroxyl, cyano, (C1-C3)-alkyl, (C1-C3)-haloalkyl, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy;
• R3 hydrogen, halogen, nitro, hydroxyl, cyano, (C1-C3)-alkyl, (C1-C3)-haloalkyl, hydroxy-(C1-C3)-alkyl, (C3-C5)-cycloalkyl, (C3-C5)-halocycloalkyl, hydroxy-(C3-C5)-cycloalkyl, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy, (C1-C3)-alkoxycarbonyl, (C2-C3) alkenyl, (C2-C3)-haloalkenyl, (C2-C3) alkynyl, (C2-C3)-haloalkynyl, (C1-C3)-alkylthio, (C1-C3)-alkylsulfinyl, (C1-C3)-alkylsulfonyl;
• R4 hydrogen, halogen, hydroxyl, cyano, (C1-C3)-alkyl, (C1-C3)-haloalkyl, (C3-C4)-halocycloalkyl, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy, (C2-C3)-haloalkenyl, (C2-C3)-haloalkynyl, (C1-C3)-alkylthio;
• R5 hydrogen, halogen, nitro, hydroxyl, cyano, (C1-C3)-alkyl, (C1-C3)-haloalkyl, hydroxy-(C1-C3)-alkyl, (C3-C5)-cycloalkyl, (C3-C5)-halocycloalkyl, hydroxy-(C3-C5)-cycloalkyl, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy, (C1-C3)-alkoxycarbonyl, (C2-C3) alkenyl, (C2-C3)-haloalkenyl, (C2-C3) alkynyl, (C2-C3)-haloalkynyl, (C1-C3)-alkylthio, (C1-C3)-alkylsulfinyl, (C1-C3)-alkylsulfonyl;
• R6 hydrogen, halogen, hydroxyl, cyano, (C1-C3)-alkyl, (C1-C3)-haloalkyl, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy;
• R7 hydrogen, fluorine, cyano, or (C1-C6)-alkyl, (C3-C6)-cycloalkyl, (C3-C6)-alkenyl, (C2-C6)-alkynyl, (C1-C6)-alkoxy, each substituted by m radicals from the group consisting of fluorine, chlorine, bromine, iodine, hydroxyl, cyano and (C1-C6)-alkoxy;
• R8, R9 each independently hydrogen, halogen, cyano, or (C1-C6)-alkyl, (C1-C6)-alkoxy, each substituted by m radicals from the group consisting of fluorine, chlorine, bromine, iodine, and cyano;
• or
• R8 and R9 form, together with the carbon atom to which they are bound, a saturated, partially or fully unsaturated three to five-membered ring containing, in addition to this carbon atom, q carbon atoms and n oxygen atoms;
• X a bond (X0) or a divalent unit from the group consisting of (X1), (X2), (X3), (X4), (X5), and (X6):
• R10-R15 each independently hydrogen, fluorine, chlorine, bromine, iodine, hydroxyl, cyano, CO2Re, CONRbRd, NRbCO2Re, Ra, or (C1-C6)-alkyl, (C3-C5)-cycloalkyl, (C2-C6)-alkenyl, (C2-C6)-alkynyl, each substituted by m radicals from the group consisting of fluorine, chlorine, bromine, iodine, hydroxyl and cyano, or (C1-C6)-alkoxy, (C3-C6)-cycloalkoxy, (C3-C6)-alkenyloxy, (C3-C6)-alkynyloxy, (C1-C3)-alkylthio, (C1-C3)-alkylsulfinyl, (C1-C3)-alkylsulfonyl, each substituted by m radicals from the group consisting of fluorine, chlorine, bromine, iodine, cyano and (C1-C2)-alkoxy;
• Y hydrogen, cyano, hydroxyl, Z,
• or
• (C1-C12)-alkyl, (C3-C8)-cycloalkyl, (C2-C12)-alkenyl or (C2-C12)-alkynyl, each substituted by m radicals from the group consisting of fluorine, chlorine, bromine, iodine, cyano, hydroxyl, ORd, Z, OZ, NHZ, S(O)nRa, SO2NRbRd, SO2NRbCORe, CO2Re, CONRbRh, CORb, CONReSO2Ra, NRbRe, NRbCORe, NRbCONReRe, NRbCO2Re, NRbSO2Re NRbSO2NRbRe, OCONRbRe, OCSNRbRe, PORfRf and C(Rb)═NORe;
• Z a three-, four-, five- or six-membered saturated, partly unsaturated, fully unsaturated or aromatic ring, except phenyl, which is formed from r carbon atoms, n nitrogen atoms, n sulfur atoms and n oxygen atoms, and which is substituted by m radicals from the group consisting of CO2Re, CONRbRh, S(O)nRa, SO2NRbRd, SO2NRbCORe, CORb, CONReSO2Ra, NRbRe, NRbCORe, NRbCONReRe, NRbCO2Re, NRbSO2Re NRbSO2NRbRe, OCONRbRe, OCSNRbRe, PORfRf, C(Rb)═NORe, Rb, Rc, Re and Rf, and where the sulfur atoms and carbon atoms bear n oxo groups;
• Ra (C1-C6)-alkyl or (C3-C6)-cycloalkyl, each of which is substituted by m radicals selected from the group consisting of fluorine, chlorine, bromine, iodine, cyano, hydroxy, and (C1-C3)-alkoxy;
• Rb hydrogen, (C1-C3)-alkoxy or Ra;
• Rc fluorine, chlorine, bromine, iodine, cyano, hydroxyl, S(O)nRa or (C1-C6)-alkoxy, (C3-C6)-alkenyloxy or (C3-C6)-alkynyloxy, each of which is substituted by m radicals selected from the group consisting of fluorine, chlorine, bromine, cyano and (C1-C2)-alkoxy;
• Rd hydrogen or (C1-C6)-alkyl, (C3-C6)-cycloalkyl, (C2-C4)-alkenyl, (C3-C6)-cycloalkyl-(C1-C3)-alkyl, phenyl-(C1-C3)-alkyl, furanyl-(C1-C3)-alkyl or (C2-C4)-alkynyl, each of which is substituted by m radicals selected from the group consisting of fluorine, chlorine, bromine, cyano, CO2Ra, CONRbRh, (C1-C2)-alkoxy, (C1-C3)-alkylthio, (C1-C3)-alkylsulfinyl, (C1-C3)-alkylsulfonyl, phenylthio, phenylsulfinyl, and phenylsulfonyl;
• Re Rd;
• Rf (C1-C3)-alkyl or (C1-C3)-alkoxy;
• Rh hydrogen or (C1-C6)-alkyl, (C1-C2)-alkoxy, (C3-C6)-cycloalkyl, (C2-C4)-alkenyl, (C1-C6)-alkoxycarbonyl-(C1-C6)-alkyl, or (C2-C4)-alkynyl each of which is substituted by m radicals selected from the group consisting of fluorine, chlorine, bromine, cyano, CO2Ra and (C1-C2)-alkoxy;
• m 0, 1, 2, 3, 4 or 5;
• n 0, 1 or 2;
• q 1, 2, 3, or 4;
• r 1, 2, 3, 4, 5 or 6;
• including their agriculturally acceptable salts, amides, esters or thioesters, provided the compounds of formula (I) have a carboxyl group.