Herbicidal pyrimidine compounds

16:

• The pyrimidine compound of formula (I),
• wherein
• R1 is C1-C6-alkyl, C1-C6-haloalkyl, HO—C1-C6-alkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-haloalkynyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-haloalkoxy, C3-C6-cycloalkoxy, C3-C6-halocycloalkoxy, C3-C6-cycloalkenyloxy, C3-C6-halocycloalkenyloxy, C1-C6-alkylthio, C1-C6-haloalkylthio, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, C1-C6-alkylsulfinyl, C1-C6-alkylsulfonyl, C3-C6-cycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkyl, C3-C6-halocycloalkenyl, [1-(C1-C6-alkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkenyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkynyl)]-C3-C6-cycloalkyl, [1-(C1-C6-haloalkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-haloalkenyl)]-C3-C6-cycloalkyl, [1-(C3-C6-haloalkynyl)]-C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C1-C6-alkoxy, C3-C6-cycloalkyl-C1-C6-haloalkoxy, 5-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the cyclic groups of R1 are unsubstituted or substituted by Ra;
• Ra is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C1-C6-haloalkoxy;
• R2 is C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C1-C6-alkoxy-C2-C6-haloalkenyl, C1-C6-haloalkoxy-C2-C6-alkenyl, C1-C6-haloalkoxy-C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy-C2-C6-alkynyl, C1-C6-alkoxy-C3-C6-haloalkynyl, C1-C6-haloalkoxy-C2-C6-alkynyl, C1-C6-haloalkoxy-C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-halocycloalkyl-C1-C6-alkyl, C3-C6-halocycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkenyl-C1-C6-haloalkyl, C3-C6-halocycloalkenyl-C1-C6-alkyl, C3-C6-halocycloalkenyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C2-C6-alkenyl, C3-C6-cycloalkyl-C2-C6-haloalkenyl, C3-C6-halocycloalkyl-C2-C6-alkenyl, C3-C6-halocycloalkyl-C2-C6-haloalkenyl, C3-C6-cycloalkenyl-C2-C6-alkenyl, C3-C6-cycloalkenyl-C2-C6-haloalkenyl, C3-C6-halocycloalkenyl-C2-C6-alkenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkenyl, C3-C6-cycloalkyl-C2-C6-alkynyl, C3-C6-cycloalkyl-C3-C6-haloalkynyl, C3-C6-halocycloalkyl-C2-C6-alkynyl, C3-C6-halocycloalkyl-C3-C6-haloalkynyl, C3-C6-cycloalkenyl-C2-C6-alkynyl, C3-C6-cycloalkenyl-C3-C6-haloalkynyl, C3-C6-halocycloalkenyl-C2-C6-alkynyl, C3-C6-halocycloalkenyl-C3-C6-haloalkynyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C2-C6-haloalkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkenyl-C1-C6-alkylidenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkylidenyl, heterocyclyl-C1-C6-alkylidenyl, heterocyclyl-C1-C6-haloalkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-haloalkyl, C1-C6-hydroxyalkyl, C2-C6-hydroxyhaloalkyl, C3-C6-hydroxyalkenyl, C3-C6-hydroxyhaloalkenyl, C3-C6-hydroxyalkynyl, C4-C6-hydroxyhaloalkynyl, C3-C6-hydroxycycloalkyl, C3-C6-hydroxyhalocycloalkyl, C3-C6-hydroxycycloalkenyl, C3-C6-hydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkyl-C1-C6-hydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkenyl-C1-C6-hydroxyalkyl-C3-C6-halocycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-cycloalkenyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, heterocyclyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-hydroxyalkyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C2-C6-dihydroxyalkyl, C3-C6-dihydroxyhaloalkyl, C4-C6-dihydroxyalkenyl, C4-C6-dihydroxyhaloalkenyl, C4-C6-dihydroxyalkynyl, C5-C6-dihydroxyhaloalkynyl, C4-C6-dihydroxycycloalkyl, C4-C6-dihydroxyhalocycloalkyl, C4-C6-dihydroxycycloalkenyl, C4-C6-dihydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkenyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkylidenyl, heterocyclyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, hydroxycarbonyl-C3-C6-dihydroxyhaloalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C3-C6-dihydroxyhaloalkyl, C3-C6-dihydroxycycloalkyl-C1-C6-alkyl, C3-C6-dihydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-haloalkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkynyl, C3-C6-dihydroxycycloalkyl-C3-C6-haloalkynyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-haloalkylcarbonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-haloalkyl, C1-C6-haloalkylcarbonyl-C1-C6-haloalkyl, hydroxycarbonyl-C2-C6-alkenyl, hydroxycarbonyl-C2-C6-haloalkenyl, C1-C6-alkoxycarbonyl-C2-C6-alkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkenyl, C1-C6-alkoxycarbonyl-C2-C6-haloalkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-haloalkenyl, hydroxycarbonyl-C2-C6-alkynyl, hydroxycarbonyl-C3-C6-haloalkynyl, C1-C6-alkoxycarbonyl-C2-C6-alkynyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkynyl, C1-C6-alkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-haloalkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C2-C6-cyanohaloalkyl, C1-C6-dicyanoalkyl, C2-C6-dicyanohaloalkyl, di(hydroxycarbonyl)-C1-C6-alkyl, di(hydroxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-haloalkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-haloalkyl, phosphoryl-C1-C6-alkyl, phosphoryl-C1-C6-haloalkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-haloalkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-haloalkyl, diphosphoryl-C1-C6-alkyl, diphosphoryl-C1-C6-haloalkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-haloalkylthio-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-haloalkyl, C1-C6-haloalkylthio-C1-C6-haloalkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-haloalkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-haloalkyl, C1-C6-haloalkylsulfinyl-C1-C6-haloalkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-haloalkyl, phenyl, 5-, 6- or 9 membered heteroaryl, 3- to 6-membered heterocyclyl, (C1-C6-alkyl)carbonylaminocarbonyl, (C2-C6-alkenyl)carbonylamino-carbonyl, (C3-C6-alkynyl)carbonylaminocarbonyl, (C1-C6-haloalkyl)carbonylaminocarbonyl, (C2-C6-haloalkenyl)carbonylaminocarbonyl, (C3-C6-haloalkynyl)carbonylaminocarbonyl, phenylcarbonylaminocarbonyl, (C3-C6-cycloalkyl)carbonylaminocarbonyl, [(C1-C6-alkyl)amino]carbonylaminocarbonyl, or [di(C1-C6-alkyl)amino]carbonylaminocarbonyl, heterocyclylcarbonylaminocarbonyl, heteroarylcarbonylaminocarbonyl, phenylcarbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb;
• cyclic groups of R2 are unsubstituted or substituted by Rc;
• and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R3 are unsubstituted or substituted by substituents Ra;
• R4, R5, R6 and R7 independently of one another are H, halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R4 R5, R6 and R7 are unsubstituted or substituted by Ra;
• or an agriculturally acceptable salt or derivative of the pyrimidine compound of formula (I) having an acidic functionality;
• with the exception of
• 5-(2-bromophenyl)-2-cyclopropyl-4-methyl-pyrimidine;
• 5-(2-bromophenyl)-2-ethyl-4-methyl-pyrimidine;
• and
• 5-(2-bromophenyl)-2-methoxy-4-methyl-pyrimidine.

18:

• The pyrimidine compound of formula (I) according to claim 16, wherein
• R2 C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkenyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-dicyanoalkyl, 5- or 6-membered heteroaryl, or (C1-C6-alkyl)carbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb,
• cyclic groups of R2 are unsubstituted or substituted by Re, and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl.

19:

• The pyrimidine compound of formula (I) according to claim 16, wherein
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C3-C6-cycloalkyl;
• R4 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, or C1-C6-alkoxy;
• R5 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, or C1-C6-alkoxy;
• R6 is H, halogen, C1-C6-alkyl, or C1-C6-haloalkyl;
• R7 is H, halogen, CN, C1-C6-alkyl, or C1-C6-alkoxy.

20:

• The pyrimidine compound of formula (I) according to claim 16, wherein
• R1 is c-C3H5;
• R2 is C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkenyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-dicyanoalkyl, 5- or 6-membered heteroaryl, or (C1-C6-alkyl)carbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb,
• cyclic groups of R2 are unsubstituted or substituted by Rc, and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is Cl, Br, I, CH3, CF3, or CF2H;
• R4 is H;
• R5 is H or F;
• R6 is H, F, CF3, Cl, or Br;
• R7 is H or F.

21:

• The pyrimidine compound of formula (I) according to claim 16 which corresponds to formula I.K,
• wherein
• X and Y independently are selected from H, CH3, C2H5, n-propyl, iso-propyl, iso-butyl, n-butyl, 2-butyl, t-butyl, OH, OCH3, SCH3, S(O)CH3, S(O)2CH3, CN, F, Cl, Br, I, CH2CF3, CF2CF3, CF2CH3, CF3, CF2H, OCF2H, and OCF3;
• R1 is c-C3H5;
• R3 is Cl, Br, I, CH3, CF3, or CF2H;
• R5 is H or F;
• R6 is H, F, CF3, Cl, or Br;
• R7 is H or F.

22:

• A herbicidal mixture comprising:
• A) at least one compound of formula I, including agriculturally acceptable salts or derivatives of the pyrimidine compound of formula (I) having an acidic functionality,
• one pyrimidine compound of formula (I),
• wherein:
• R1 is C1-C6-alkyl, C1-C6-haloalkyl, HO—C1-C6-alkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-haloalkynyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-haloalkoxy, C3-C6-cycloalkoxy, C3-C6-halocycloalkoxy, C3-C6-cycloalkenyloxy, C3-C6-halocycloalkenyloxy, C1-C6-alkylthio, C1-C6-haloalkylthio, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, C1-C6-alkylsulfinyl, C1-C6-alkylsulfonyl, C3-C6-cycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkyl, C3-C6-halocycloalkenyl, [1-(C1-C6-alkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkenyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkynyl)]-C3-C6-cycloalkyl, [1-(C1-C6-haloalkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-haloalkenyl)]-C3-C6-cycloalkyl, [1-(C3-C6-haloalkynyl)]-C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C1-C6-alkoxy, C3-C6-cycloalkyl-C1-C6-haloalkoxy, phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the cyclic groups of R1 are unsubstituted or substituted by Ra;
• R2 is C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C1-C6-alkoxy-C2-C6-haloalkenyl, C1-C6-haloalkoxy-C2-C6-alkenyl, C1-C6-haloalkoxy-C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy-C2-C6-alkynyl, C1-C6-alkoxy-C3-C6-haloalkynyl, C1-C6-haloalkoxy-C2-C6-alkynyl, C1-C6-haloalkoxy-C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-halocycloalkyl-C1-C6-alkyl, C3-C6-halocycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkenyl-C1-C6-haloalkyl, C3-C6-halocycloalkenyl-C1-C6-alkyl, C3-C6-halocycloalkenyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C2-C6-alkenyl, C3-C6-cycloalkyl-C2-C6-haloalkenyl, C3-C6-halocycloalkyl-C2-C6-alkenyl, C3-C6-halocycloalkyl-C2-C6-haloalkenyl, C3-C6-cycloalkenyl-C2-C6-alkenyl, C3-C6-cycloalkenyl-C2-C6-haloalkenyl, C3-C6-halocycloalkenyl-C2-C6-alkenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkenyl, C3-C6-cycloalkyl-C2-C6-alkynyl, C3-C6-cycloalkyl-C3-C6-haloalkynyl, C3-C6-halocycloalkyl-C2-C6-alkynyl, C3-C6-halocycloalkyl-C3-C6-haloalkynyl, C3-C6-cycloalkenyl-C2-C6-alkynyl, C3-C6-cycloalkenyl-C3-C6-haloalkynyl, C3-C6-halocycloalkenyl-C2-C6-alkynyl, C3-C6-halocycloalkenyl-C3-C6-haloalkynyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C2-C6-haloalkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkenyl-C1-C6-alkylidenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkylidenyl, heterocyclyl-C1-C6-alkylidenyl, heterocyclyl-C1-C6-haloalkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-haloalkyl, C1-C6-hydroxyalkyl, C2-C6-hydroxyhaloalkyl, C3-C6-hydroxyalkenyl, C3-C6-hydroxyhaloalkenyl, C3-C6-hydroxyalkynyl, C4-C6-hydroxyhaloalkynyl, C3-C6-hydroxycycloalkyl, C3-C6-hydroxyhalocycloalkyl, C3-C6-hydroxycycloalkenyl, C3-C6-hydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkyl-C1-C6-hydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkenyl-C1-C6-hydroxyalkyl-C3-C6-halocycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-cycloalkenyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, heterocyclyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-hydroxyalkyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C2-C6-dihydroxyalkyl, C3-C6-dihydroxyhaloalkyl, C4-C6-dihydroxyalkenyl, C4-C6-dihydroxyhaloalkenyl, C4-C6-dihydroxyalkynyl, C5-C6-dihydroxyhaloalkynyl, C4-C6-dihydroxycycloalkyl, C4-C6-dihydroxyhalocycloalkyl, C4-C6-dihydroxycycloalkenyl, C4-C6-dihydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkenyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkylidenyl, heterocyclyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, hydroxycarbonyl-C3-C6-dihydroxyhaloalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C3-C6-dihydroxyhaloalkyl, C3-C6-dihydroxycycloalkyl-C1-C6-alkyl, C3-C6-dihydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-haloalkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkynyl, C3-C6-dihydroxycycloalkyl-C3-C6-haloalkynyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-haloalkylcarbonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-haloalkyl, C1-C6-haloalkylcarbonyl-C1-C6-haloalkyl, hydroxycarbonyl-C2-C6-alkenyl, hydroxycarbonyl-C2-C6-haloalkenyl, C1-C6-alkoxycarbonyl-C2-C6-alkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkenyl, C1-C6-alkoxycarbonyl-C2-C6-haloalkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-haloalkenyl, hydroxycarbonyl-C2-C6-alkynyl, hydroxycarbonyl-C3-C6-haloalkynyl, C1-C6-alkoxycarbonyl-C2-C6-alkynyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkynyl, C1-C6-alkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-haloalkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C2-C6-cyanohaloalkyl, C1-C6-dicyanoalkyl, C2-C6-dicyanohaloalkyl, di(hydroxycarbonyl)-C1-C6-alkyl, di(hydroxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-haloalkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-haloalkyl, phosphoryl-C1-C6-alkyl, phosphoryl-C1-C6-haloalkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-haloalkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-haloalkyl, diphosphoryl-C1-C6-alkyl, diphosphoryl-C1-C6-haloalkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-haloalkylthio-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-haloalkyl, C1-C6-haloalkylthio-C1-C6-haloalkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-haloalkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-haloalkyl, C1-C6-haloalkylsulfinyl-C1-C6-haloalkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-haloalkyl, phenyl, 5-, 6- or 9 membered heteroaryl, 3- to 6-membered heterocyclyl, (C1-C6-alkyl)carbonylaminocarbonyl, (C2-C6-alkenyl)carbonylamino-carbonyl, (C3-C6-alkynyl)carbonylaminocarbonyl, (C1-C6-haloalkyl)carbonylaminocarbonyl, (C2-C6-haloalkenyl)carbonylaminocarbonyl, (C3-C6-haloalkynyl)carbonylaminocarbonyl, phenylcarbonylaminocarbonyl, (C3-C6-cycloalkyl)carbonylaminocarbonyl, [(C1-C6-alkyl)amino]carbonylaminocarbonyl, or [di(C1-C6-alkyl)amino]carbonylaminocarbonyl, heterocyclylcarbonylaminocarbonyl, heteroarylcarbonylaminocarbonyl, phenylcarbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb;
• cyclic groups of R2 are unsubstituted or substituted by Rc;
• and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R3 are unsubstituted or substituted by substituents Ra;
• R4, R5, R6 and R7 independently of one another are H, halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R4 R5, R6 and R7 are unsubstituted or substituted by Ra;
• Ra is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C1-C6-haloalkoxy;
• or an agriculturally acceptable salt or derivative of the pyrimidine compound of formula (I) having an acidic functionality,
• and
• B) herbicides of class b1) to b15):
• b1) lipid biosynthesis inhibitors;
• 8
• b2) acetolactate synthase inhibitors (ALS inhibitors);
• b3) photosynthesis inhibitors;
• b4) protoporphyrinogen-IX oxidase inhibitors,
• b5) bleacher herbicides;
• b6) enolpyruvyl shikimate 3-phosphate synthase inhibitors (EPSP inhibitors);
• b7) glutamine synthetase inhibitors;
• b8) 7,8-dihydropteroate synthase inhibitors (DHP inhibitors);
• b9) mitosis inhibitors;
• b10) inhibitors of the synthesis of very long chain fatty acids (VLCFA inhibitors);
• b11) cellulose biosynthesis inhibitors;
• b12) decoupler herbicides;
• b13) auxinic herbicides;
• b14) auxin transport inhibitors;
• and
• b15) other herbicides selected from the group consisting of bromobutide, chlorflurenol, chlorflurenol-methyl, cinmethylin, cumyluron, dalapon, dazomet, difenzoquat, difenzoquat-metilsulfate, dimethipin, DSMA, dymron, endothal and its salts, etobenzanid, flamprop, flamprop-isopropyl, flamprop-methyl, flamprop-M-isopropyl, flamprop-M-methyl, flurenol, flurenol-butyl, flurprimidol, fosamine, fosamine-ammonium, indanofan, indaziflam, maleic hydrazide, mefluidide, metam, methiozolin (CAS 403640-27-7), methyl azide, methyl bromide, methyl-dymron, methyl iodide, MSMA, oleic acid, oxaziclomefone, pelargonic acid, pyributicarb, quinoclamine, triaziflam, tridiphane and 6-chloro-3-(2-cyclopropyl-6-methylphenoxy)-4-pyridazinol, and its salts and esters;
• including their agriculturally acceptable salts or derivatives.

25:

• A herbicidal composition comprising a herbicidally active amount of at least one compound of formula (I) or an agriculturally acceptable salt or derivative of the pyrimidine compound of formula (I) having an acidic functionality
• one pyrimidine compound of formula (I),
• wherein:
• R1 is C1-C6-alkyl, C1-C6-haloalkyl, HO—C1-C6-alkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-haloalkynyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-haloalkoxy, C3-C6-cycloalkoxy, C3-C6-halocycloalkoxy, C3-C6-cycloalkenyloxy, C3-C6-halocycloalkenyloxy, C1-C6-alkylthio, C1-C6-haloalkylthio, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, C1-C6-alkylsulfinyl, C1-C6-alkylsulfonyl, C3-C6-cycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkyl, C3-C6-halocycloalkenyl, [1-(C1-C6-alkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkenyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkynyl)]-C3-C6-cycloalkyl, [1-(C1-C6-haloalkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-haloalkenyl)]-C3-C6-cycloalkyl, [1-(C3-C6-haloalkynyl)]-C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C1-C6-alkoxy, C3-C6-cycloalkyl-C1-C6-haloalkoxy, phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the cyclic groups of R1 are unsubstituted or substituted by Ra;
• R2 is C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C1-C6-alkoxy-C2-C6-haloalkenyl, C1-C6-haloalkoxy-C2-C6-alkenyl, C1-C6-haloalkoxy-C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy-C2-C6-alkynyl, C1-C6-alkoxy-C3-C6-haloalkynyl, C1-C6-haloalkoxy-C2-C6-alkynyl, C1-C6-haloalkoxy-C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-halocycloalkyl-C1-C6-alkyl, C3-C6-halocycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkenyl-C1-C6-haloalkyl, C3-C6-halocycloalkenyl-C1-C6-alkyl, C3-C6-halocycloalkenyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C2-C6-alkenyl, C3-C6-cycloalkyl-C2-C6-haloalkenyl, C3-C6-halocycloalkyl-C2-C6-alkenyl, C3-C6-halocycloalkyl-C2-C6-haloalkenyl, C3-C6-cycloalkenyl-C2-C6-alkenyl, C3-C6-cycloalkenyl-C2-C6-haloalkenyl, C3-C6-halocycloalkenyl-C2-C6-alkenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkenyl, C3-C6-cycloalkyl-C2-C6-alkynyl, C3-C6-cycloalkyl-C3-C6-haloalkynyl, C3-C6-halocycloalkyl-C2-C6-alkynyl, C3-C6-halocycloalkyl-C3-C6-haloalkynyl, C3-C6-cycloalkenyl-C2-C6-alkynyl, C3-C6-cycloalkenyl-C3-C6-haloalkynyl, C3-C6-halocycloalkenyl-C2-C6-alkynyl, C3-C6-halocycloalkenyl-C3-C6-haloalkynyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C2-C6-haloalkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkenyl-C1-C6-alkylidenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkylidenyl, heterocyclyl-C1-C6-alkylidenyl, heterocyclyl-C1-C6-haloalkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-haloalkyl, C1-C6-hydroxyalkyl, C2-C6-hydroxyhaloalkyl, C3-C6-hydroxyalkenyl, C3-C6-hydroxyhaloalkenyl, C3-C6-hydroxyalkynyl, C4-C6-hydroxyhaloalkynyl, C3-C6-hydroxycycloalkyl, C3-C6-hydroxyhalocycloalkyl, C3-C6-hydroxycycloalkenyl, C3-C6-hydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkyl-C1-C6-hydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkenyl-C1-C6-hydroxyalkyl-C3-C6-halocycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-cycloalkenyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, heterocyclyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-hydroxyalkyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C2-C6-dihydroxyalkyl, C3-C6-dihydroxyhaloalkyl, C4-C6-dihydroxyalkenyl, C4-C6-dihydroxyhaloalkenyl, C4-C6-dihydroxyalkynyl, C5-C6-dihydroxyhaloalkynyl, C4-C6-dihydroxycycloalkyl, C4-C6-dihydroxyhalocycloalkyl, C4-C6-dihydroxycycloalkenyl, C4-C6-dihydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkenyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkylidenyl, heterocyclyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, hydroxycarbonyl-C3-C6-dihydroxyhaloalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C3-C6-dihydroxyhaloalkyl, C3-C6-dihydroxycycloalkyl-C1-C6-alkyl, C3-C6-dihydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-haloalkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkynyl, C3-C6-dihydroxycycloalkyl-C3-C6-haloalkynyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-haloalkylcarbonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-haloalkyl, C1-C6-haloalkylcarbonyl-C1-C6-haloalkyl, hydroxycarbonyl-C2-C6-alkenyl, hydroxycarbonyl-C2-C6-haloalkenyl, C1-C6-alkoxycarbonyl-C2-C6-alkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkenyl, C1-C6-alkoxycarbonyl-C2-C6-haloalkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-haloalkenyl, hydroxycarbonyl-C2-C6-alkynyl, hydroxycarbonyl-C3-C6-haloalkynyl, C1-C6-alkoxycarbonyl-C2-C6-alkynyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkynyl, C1-C6-alkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-haloalkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C2-C6-cyanohaloalkyl, C1-C6-dicyanoalkyl, C2-C6-dicyanohaloalkyl, di(hydroxycarbonyl)-C1-C6-alkyl, di(hydroxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-haloalkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-haloalkyl, phosphoryl-C1-C6-alkyl, phosphoryl-C1-C6-haloalkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-haloalkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-haloalkyl, diphosphoryl-C1-C6-alkyl, diphosphoryl-C1-C6-haloalkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-haloalkylthio-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-haloalkyl, C1-C6-haloalkylthio-C1-C6-haloalkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-haloalkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-haloalkyl, C1-C6-haloalkylsulfinyl-C1-C6-haloalkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-haloalkyl, phenyl, 5-, 6- or 9 membered heteroaryl, 3- to 6-membered heterocyclyl, (C1-C6-alkyl)carbonylaminocarbonyl, (C2-C6-alkenyl)carbonylamino-carbonyl, (C3-C6-alkynyl)carbonylaminocarbonyl, (C1-C6-haloalkyl)carbonylaminocarbonyl, (C2-C6-haloalkenyl)carbonylaminocarbonyl, (C3-C6-haloalkynyl)carbonylaminocarbonyl, phenylcarbonylaminocarbonyl, (C3-C6-cycloalkyl)carbonylaminocarbonyl, [(C1-C6-alkyl)amino]carbonylaminocarbonyl, or [di(C1-C6-alkyl)amino]carbonylaminocarbonyl, heterocyclylcarbonylaminocarbonyl, heteroarylcarbonylaminocarbonyl, phenylcarbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb;
• cyclic groups of R2 are unsubstituted or substituted by Rc;
• and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R3 are unsubstituted or substituted by substituents Ra;
• R4, R5, R6 and R7 independently of one another are H, halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R4 R5, R6 and R7 are unsubstituted or substituted by Ra;
• Ra is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C1-C6-haloalkoxy;
• or an agriculturally acceptable salt or derivative of the pyrimidine compound of formula (I) having an acidic functionality,
• and at least one inert liquid and/or solid carrier and, if appropriate, at least one surface-active substance.

27:

• A method of controlling undesired vegetation, which comprises allowing a herbicidal active amount of at least one pyrimidine compound of formula (I),
• wherein:
• R1 is C1-C6-alkyl, C1-C6-haloalkyl, HO—C1-C6-alkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-haloalkynyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-haloalkoxy, C3-C6-cycloalkoxy, C3-C6-halocycloalkoxy, C3-C6-cycloalkenyloxy, C3-C6-halocycloalkenyloxy, C1-C6-alkylthio, C1-C6-haloalkylthio, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, C1-C6-alkylsulfinyl, C1-C6-alkylsulfonyl, C3-C6-cycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkyl, C3-C6-halocycloalkenyl, [1-(C1-C6-alkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkenyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkynyl)]-C3-C6-cycloalkyl, [1-(C1-C6-haloalkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-haloalkenyl)]-C3-C6-cycloalkyl, [1-(C3-C6-haloalkynyl)]-C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C1-C6-alkoxy, C3-C6-cycloalkyl-C1-C6-haloalkoxy, phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the cyclic groups of R1 are unsubstituted or substituted by Ra;
• R2 is C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C1-C6-alkoxy-C2-C6-haloalkenyl, C1-C6-haloalkoxy-C2-C6-alkenyl, C1-C6-haloalkoxy-C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy-C2-C6-alkynyl, C1-C6-alkoxy-C3-C6-haloalkynyl, C1-C6-haloalkoxy-C2-C6-alkynyl, C1-C6-haloalkoxy-C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-halocycloalkyl-C1-C6-alkyl, C3-C6-halocycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkenyl-C1-C6-haloalkyl, C3-C6-halocycloalkenyl-C1-C6-alkyl, C3-C6-halocycloalkenyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C2-C6-alkenyl, C3-C6-cycloalkyl-C2-C6-haloalkenyl, C3-C6-halocycloalkyl-C2-C6-alkenyl, C3-C6-halocycloalkyl-C2-C6-haloalkenyl, C3-C6-cycloalkenyl-C2-C6-alkenyl, C3-C6-cycloalkenyl-C2-C6-haloalkenyl, C3-C6-halocycloalkenyl-C2-C6-alkenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkenyl, C3-C6-cycloalkyl-C2-C6-alkynyl, C3-C6-cycloalkyl-C3-C6-haloalkynyl, C3-C6-halocycloalkyl-C2-C6-alkynyl, C3-C6-halocycloalkyl-C3-C6-haloalkynyl, C3-C6-cycloalkenyl-C2-C6-alkynyl, C3-C6-cycloalkenyl-C3-C6-haloalkynyl, C3-C6-halocycloalkenyl-C2-C6-alkynyl, C3-C6-halocycloalkenyl-C3-C6-haloalkynyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C2-C6-haloalkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C2-C6-haloalkylidenyl, C3-C6-halocycloalkenyl-C1-C6-alkylidenyl, C3-C6-halocycloalkenyl-C2-C6-haloalkylidenyl, heterocyclyl-C1-C6-alkylidenyl, heterocyclyl-C1-C6-haloalkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-haloalkyl, C1-C6-hydroxyalkyl, C2-C6-hydroxyhaloalkyl, C3-C6-hydroxyalkenyl, C3-C6-hydroxyhaloalkenyl, C3-C6-hydroxyalkynyl, C4-C6-hydroxyhaloalkynyl, C3-C6-hydroxycycloalkyl, C3-C6-hydroxyhalocycloalkyl, C3-C6-hydroxycycloalkenyl, C3-C6-hydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkyl-C1-C6-hydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-halocycloalkenyl-C1-C6-hydroxyalkyl-C3-C6-halocycloalkenyl-C2-C6-hydroxyhaloalkyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyhaloalkenyl, C3-C6-cycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-halocycloalkenyl-C3-C6-hydroxyalkynyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, C3-C6-cycloalkenyl-C2-C6-hydroxyalkylidenyl, C3-C6-halocycloalkyl-C2-C6-hydroxyalkylidenyl, heterocyclyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-hydroxyalkyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-hydroxyalkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkenyl-C1-C6-hydroxyalkyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C3-C6-hydroxycycloalkyl-C3-C6-hydroxyalkynyl, C3-C6-hydroxycycloalkenyl-C3-C6-hydroxyalkenyl, C2-C6-dihydroxyalkyl, C3-C6-dihydroxyhaloalkyl, C4-C6-dihydroxyalkenyl, C4-C6-dihydroxyhaloalkenyl, C4-C6-dihydroxyalkynyl, C5-C6-dihydroxyhaloalkynyl, C4-C6-dihydroxycycloalkyl, C4-C6-dihydroxyhalocycloalkyl, C4-C6-dihydroxycycloalkenyl, C4-C6-dihydroxyhalocycloalkenyl, C3-C6-cycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-halocycloalkenyl-C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-halocycloalkenyl-C3-C6-dihydroxyalkenyl, C3-C6-cycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkenyl-C4-C6-dihydroxyalkynyl, C3-C6-halocycloalkyl-C4-C6-dihydroxyalkynyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, C3-C6-halocycloalkyl-C3-C6-dihydroxyalkylidenyl, heterocyclyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, hydroxycarbonyl-C3-C6-dihydroxyhaloalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-haloalkoxycarbonyl-C3-C6-dihydroxyhaloalkyl, C3-C6-dihydroxycycloalkyl-C1-C6-alkyl, C3-C6-dihydroxycycloalkyl-C1-C6-haloalkyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-haloalkenyl, C3-C6-dihydroxycycloalkyl-C2-C6-alkynyl, C3-C6-dihydroxycycloalkyl-C3-C6-haloalkynyl, C1-C6-alkylcarbonyl-C1-C6-alkyl, C1-C6-haloalkylcarbonyl-C1-C6-alkyl, C1-C6-alkylcarbonyl-C1-C6-haloalkyl, C1-C6-haloalkylcarbonyl-C1-C6-haloalkyl, hydroxycarbonyl-C2-C6-alkenyl, hydroxycarbonyl-C2-C6-haloalkenyl, C1-C6-alkoxycarbonyl-C2-C6-alkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkenyl, C1-C6-alkoxycarbonyl-C2-C6-haloalkenyl, C1-C6-haloalkoxycarbonyl-C2-C6-haloalkenyl, hydroxycarbonyl-C2-C6-alkynyl, hydroxycarbonyl-C3-C6-haloalkynyl, C1-C6-alkoxycarbonyl-C2-C6-alkynyl, C1-C6-haloalkoxycarbonyl-C2-C6-alkynyl, C1-C6-alkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-haloalkoxycarbonyl-C3-C6-haloalkynyl, C1-C6-cyanoalkyl, C2-C6-cyanohaloalkyl, C1-C6-dicyanoalkyl, C2-C6-dicyanohaloalkyl, di(hydroxycarbonyl)-C1-C6-alkyl, di(hydroxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-alkyl, di(C1-C6-alkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-haloalkoxycarbonyl)-C1-C6-haloalkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-alkyl, di(C1-C6-alkoxyl)phosphoryl-C1-C6-haloalkyl, di(C1-C6-haloalkoxyl)phosphoryl-C1-C6-haloalkyl, phosphoryl-C1-C6-alkyl, phosphoryl-C1-C6-haloalkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-alkyl, di[di(C1-C6-alkoxyl)phosphoryl-)]C1-C6-haloalkyl, di[di(C1-C6-haloalkoxyl)phosphoryl-)]C1-C6-haloalkyl, diphosphoryl-C1-C6-alkyl, diphosphoryl-C1-C6-haloalkyl, C1-C6-alkylthio-C1-C6-alkyl, C1-C6-haloalkylthio-C1-C6-alkyl, C1-C6-alkylthio-C1-C6-haloalkyl, C1-C6-haloalkylthio-C1-C6-haloalkyl, C1-C6-alkylsulfinyl-C1-C6-alkyl, C1-C6-haloalkylsulfinyl-C1-C6-alkyl, C1-C6-alkylsulfinyl-C1-C6-haloalkyl, C1-C6-haloalkylsulfinyl-C1-C6-haloalkyl, C1-C6-alkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-alkyl, C1-C6-haloalkylsulfonyl-C1-C6-haloalkyl, phenyl, 5-, 6- or 9 membered heteroaryl, 3- to 6-membered heterocyclyl, (C1-C6-alkyl)carbonylaminocarbonyl, (C2-C6-alkenyl)carbonylamino-carbonyl, (C3-C6-alkynyl)carbonylaminocarbonyl, (C1-C6-haloalkyl)carbonylaminocarbonyl, (C2-C6-haloalkenyl)carbonylaminocarbonyl, (C3-C6-haloalkynyl)carbonylaminocarbonyl, phenylcarbonylaminocarbonyl, (C3-C6-cycloalkyl)carbonylaminocarbonyl, [(C1-C6-alkyl)amino]carbonylaminocarbonyl, or [di(C1-C6-alkyl)amino]carbonylaminocarbonyl, heterocyclylcarbonylaminocarbonyl, heteroarylcarbonylaminocarbonyl, phenylcarbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb;
• cyclic groups of R2 are unsubstituted or substituted by Rc;
• and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R3 are unsubstituted or substituted by substituents Ra;
• R4, R5, R6 and R7 independently of one another are H, halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C2-C6-haloalkynyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-alkoxy-C1-C6-alkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylthio, C1-C6-haloalkylthio, NH2, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, (C1-C6-alkyl)sulfinyl, (C1-C6-alkyl)sulfonyl, C3-C6-cycloalkyl, (C3-C6-cycloalkyl)oxy or phenyl;
• wherein the cyclic groups of R4 R5, R6 and R7 are unsubstituted or substituted by Ra;
• Ra is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C1-C6-haloalkoxy;
• or an agriculturally acceptable salt or derivative of the pyrimidine compound of formula (I) having an acidic functionality,
• to act on plants, their environment or on seed.

28:

• The method of claim 27, wherein
• R1 is C1-C6-alkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C4-C6-haloalkynyloxy, C1-C6-alkylthio, or C3-C6-cycloalkyl, wherein the cycloalkyl substituent is unsubstituted;
• R2 is C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkenyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-dicyanoalkyl, 5- or 6-membered heteroaryl, or (C1-C6-alkyl)carbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb,
• cyclic groups of R2 are unsubstituted or substituted by Rc, and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy or C3-C6-cycloalkyl;
• R4 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl or C1-C6-alkoxy;
• R5 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl or C1-C6-alkoxy;
• R6 is H, halogen, C1-C6-alkyl or C1-C6-haloalkyl;
• R7 is H, halogen, CN, C1-C6-alkyl or C1-C6-alkoxy.

29:

• The method of claim 27,
• wherein the variables R2, R3, R4, R5, R6 and R7 are as defined in claim 27,
• R1 is C1-C6-alkyl, C1-C6-haloalkyl, HO—C1-C6-alkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C2-C6-alkynyl, C3-C6-haloalkynyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy, C3-C6-alkenyloxy, C3-C6-haloalkenyloxy, C3-C6-alkynyloxy, C3-C6-haloalkynyloxy, C1-C6-haloalkoxy, C3-C6-cycloalkoxy, C3-C6-halocycloalkoxy, C3-C6-cycloalkenyloxy, C3-C6-halocycloalkenyloxy, C1-C6-alkylthio, C1-C6-haloalkylthio, (C1-C6-alkyl)amino, di(C1-C6-alkyl)amino, C1-C6-alkylsulfinyl, C1-C6-alkylsulfonyl, C3-C6-cycloalkyl, C3-C6-cycloalkenyl, C3-C6-halocycloalkyl, C3-C6-halocycloalkenyl, [1-(C1-C6-alkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkenyl)]-C3-C6-cycloalkyl, [1-(C2-C6-alkynyl)]-C3-C6-cycloalkyl, [1-(C1-C6-haloalkyl)]-C3-C6-cycloalkyl, [1-(C2-C6-haloalkenyl)]-C3-C6-cycloalkyl, [1-(C3-C6-haloalkynyl)]-C3-C6-cycloalkyl, C3-C6-cycloalkyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-haloalkyl, C3-C6-cycloalkyl-C1-C6-alkoxy, C3-C6-cycloalkyl-C1-C6-haloalkoxy, 5-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the cyclic groups of R1 are unsubstituted or substituted by Ra;
• Ra is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C1-C6-haloalkoxy;
• including agriculturally acceptable salts or derivatives of the pyrimidine compound of formula (I) having an acidic functionality;
• with the exception of
• 5-(2-bromophenyl)-2-cyclopropyl-4-methyl-pyrimidine;
• 5-(2-bromophenyl)-2-ethyl-4-methyl-pyrimidine;
• and
• 5-(2-bromophenyl)-2-methoxy-4-methyl-pyrimidine.

31:

• The method of claim 27, wherein
• R2 C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkenyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-dicyanoalkyl, 5- or 6-membered heteroaryl, or (C1-C6-alkyl)carbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb,
• cyclic groups of R2 are unsubstituted or substituted by Re, and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl.

32:

• The method of claim 27, wherein
• R3 is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C3-C6-cycloalkyl;
• R4 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, or C1-C6-alkoxy;
• R5 is H, halogen, CN, C1-C6-alkyl, C1-C6-haloalkyl, or C1-C6-alkoxy;
• R6 is H, halogen, C1-C6-alkyl, or C1-C6-haloalkyl;
• R7 is H, halogen, CN, C1-C6-alkyl, or C1-C6-alkoxy.

33:

• The method of claim 27, wherein
• R1 is c-C3H5;
• R2 is C2-C6-alkenyl, C2-C6-haloalkenyl, C1-C6-alkoxy-C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkenyl, C3-C6-cycloalkenyl-C1-C6-alkyl, C3-C6-cycloalkyl-C1-C6-alkylidenyl, C3-C6-halocycloalkyl-C1-C6-alkylidenyl, C3-C6-cycloalkenyl-C1-C6-alkylidenyl, C3-C6-hydroxycycloalkyl-C1-C6-alkyl, C3-C6-hydroxycycloalkenyl-C1-C6-alkyl, C1-C6-hydroxyalkyl, C3-C6-cycloalkyl-C2-C6-hydroxyalkylidenyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C3-C6-hydroxycycloalkyl-C1-C6-hydroxyalkyl, C2-C6-dihydroxyalkyl, C3-C6-cycloalkyl-C3-C6-dihydroxyalkylidenyl, hydroxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-alkoxycarbonyl-C2-C6-dihydroxyalkyl, C1-C6-dicyanoalkyl, 5- or 6-membered heteroaryl, or (C1-C6-alkyl)carbonylaminocarbonyl;
• wherein OH groups of R2 are unsubstituted or substituted by Rb,
• cyclic groups of R2 are unsubstituted or substituted by Rc, and
• acyclic aliphatic groups of R2 are unsubstituted or substituted by Rd;
• Rb is C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C3-C6-cycloalkyl, C3-C6-halocycloalkyl, C4-C6-cycloalkenyl, C3-C6-halocycloalkenyl, C1-C6-alkoxycarbonyl-C1-C6-alkyl, C1-C6-haloalkoxycarbonyl-C1-C6-alkyl, C1-C6-alkoxycarbonyl-C1-C6-haloalkyl, C1-C6-haloalkoxycarbonyl-C1-C6-haloalkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkylcarbonyl, hydroxycarbonyl-C1-C6-alkyl, hydroxycarbonyl-C1-C6-haloalkyl, C1-C6-alkyloxycarbonyl, C1-C6-haloalkyloxycarbonyl, C1-C6-alkylthiocarbonyl, C1-C6-haloalkylthiocarbonyl, C1-C6-alkylaminocarbonyl, C1-C6-haloalkylaminocarbonyl, C1-C6-dialkylaminocarbonyl, C1-C6-dihaloalkylaminocarbonyl, C1-C6-alkylsulfonyl, C1-C6-haloalkylsulfonyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-haloalkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-haloalkyl, C1-C6-haloalkoxy-C1-C6-haloalkyl, phenyl-C1-C6-alkyl, or phenyl-C1-C6-haloalkyl;
• Rc is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylthio, C1-C6-alkylsulfinyl, or C1-C6-alkylsulfonyl;
• Rd is phenyl, 5- or 6-membered heteroaryl, or 3- to 6-membered heterocyclyl;
• wherein the substituent Rd is unsubstituted or substituted by Re;
• Re is halogen, CN, NO2, C1-C6-alkyl, C1-C6-haloalkyl, OH, C1-C6-alkoxy, C1-C6-haloalkoxy, C1-C6-alkylsulfonyl;
• R3 is Cl, Br, I, CH3, CF3, or CF2H;
• R4 is H;
• R5 is H or F;
• R6 is H, F, CF3, Cl, or Br;
• R7 is H or F.

34:

• The method of claim 27, wherein the compound of formula (I) corresponds to formula I.K,
• wherein
• X and Y independently are selected from H, CH3, C2H5, n-propyl, iso-propyl, iso-butyl, n-butyl, 2-butyl, t-butyl, OH, OCH3, SCH3, S(O)CH3, S(O)2CH3, CN, F, Cl, Br, I, CH2CF3, CF2CF3, CF2CH3, CF3, CF2H, OCF2H, and OCF3;
• R1 is c-C3H5;
• R3 is Cl, Br, I, CH3, CF3, or CF2H;
• R5 is H or F;
• R6 is H, F, CF3, Cl, or Br;
• R7 is H or F.