Pyrimidinyloxy benzene derivatives as herbicides

A compound selected from Formula 1, N-oxides and salts thereof,

• Q is a 5- or 6-membered aromatic heterocylic ring, bound to the remainder of Formula 1 through a carbon atom, and optionally substituted with 1 to 4 R1;
• Z is O or S;
• each R1 is independently halogen, cyano, nitro, SF5, CHO, C(═O)NH2, C(═S)NH2, SO2NH2, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, C1-C4 haloalkyl, C2-C4 haloalkenyl, C2-C4 haloalkynyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C4-C8 alkylcycloalkyl, C4-C8 cycloalkylalkyl, C2-C6 alkylcarbonyl, C2-C6 haloalkylcarbonyl, C2-C6 alkoxycarbonyl, C3-C7 cycloalkylcarbonyl, C2-C8 alkylaminocarbonyl, C3-C10 dialkylaminocarbonyl, C1-C4 alkoxy, C3-C4 alkenyloxy, C3-C4 alkynyloxy, C1-C4 haloalkoxy, C3-C4 haloalkenyloxy, C3-C4 haloalkynyloxy, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C4-C8 cycloalkylalkoxy, C2-C6 alkoxyalkyl, C2-C6 haloalkoxyalkyl, C2-C6 alkoxyhaloalkyl, C2-C6 alkoxyalkoxy, C2-C4 alkylcarbonyloxy, C2-C6 cyanoalkyl, C2-C6 cyanoalkoxy, C1-C4 hydroxyalkyl, C2-C4 alkylthioalkyl, SOnR1A, Si(CH3)3 or B(—OC(R1B)2C(R1B)2O—);
• or a phenyl ring optionally substituted with up to 5 substituents independently selected from R1C;
• or a 5- or 6-membered heteroaromatic ring containing ring members selected from carbon atoms and up to 4 heteroatoms independently selected from up to 2 O, up to 2 S and up to 4 N atoms, each ring optionally substituted with up to 3 substituents independently selected from R1 on carbon atom ring members and R1D on nitrogen atom ring members;
• R2 is halogen, cyano, nitro, C1-C4 alkoxy, C1-C4 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, SOnR2A, C1-C4 haloalkyl or C3-C6 cycloalkyl;
• each R3 is independently halogen, cyano, hydroxy, nitro, amino, CHO, C(═O)NH2, C(═S)NH2, SO2NH2, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, C1-C4 haloalkyl, C2-C4 haloalkenyl, C2-C4 haloalkynyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C4-C8 alkylcycloalkyl, C4-C8 cycloalkylalkyl, C2-C6 alkylcarbonyl, C2-C6 haloalkylcarbonyl, C2-C6 alkoxycarbonyl, C3-C7 cycloalkylcarbonyl, C1-C4 alkoxy, C3-C4 alkenyloxy, C3-C4 alkynyloxy, C1-C4 haloalkoxy, C3-C4 haloalkenyloxy, C3-C4 haloalkynyloxy, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C4-C8 cycloalkylalkoxy, C2-C6 alkoxyalkyl, C2-C6 haloalkoxyalkyl, C2-C6 alkoxyhaloalkyl, C2-C6 alkoxyalkoxy, C2-C4 alkylcarbonyloxy, C2-C6 cyanoalkyl, C2-C6 cyanoalkoxy, C2-C4 alkylthioalkyl, Si(CH3)3, C≡CSi(CH3)3, C(—O)N(R3A)(R3B), C(═NOR3C)H, C(═NR3D)H, SOnR3E;
• or a phenyl ring optionally substituted with up to 5 substituents independently selected from R3F;
• or a 5- or 6-membered heteroaromatic ring containing ring members selected from carbon atoms and up to 4 heteroatoms independently selected from up to 2 O, up to 2 S and up to 4 N atoms, each ring optionally substituted with up to 3 substituents independently selected from R3F on carbon atom ring members and R3G on nitrogen atom ring members;
• or pyrimidinyloxy;
• m is 0, 1, 2 or 3;
• each n is independently 0, 1 or 2;
• each R1A, R2A and R3E is independently C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkylamino or C2-C6 dialkylamino;
• each R1B is independently H or C1-C4 alkyl;
• each R1C is independently hydroxy, halogen, cyano, nitro, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy or C1-C6 haloalkoxy;
• each R1D is independently cyano, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy or C2-C6 alkylcarbonyl;
• each R3A is independently C1-C4 alkyl or C1-C4 haloalkyl;
• each R3B is independently H, C1-C4 alkyl or C1-C4 haloalkyl;
• each R3C is independently H or C1-C4 alkyl;
• each R3D is independently H, amino, C1-C4 alkyl or C1-C4 alkylamino;
• each R3F is independently hydroxy, halogen, cyano, nitro, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy or C1-C6 haloalkoxy;
• and
• each R3G is independently cyano, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy or C2-C6 alkylcarbonyl;