Bromine- or iodine-para-substituted [(1,5-diphenyl-1h-1,2,4-triazol-3-yl)oxy]acetic acid derivatives and their salts, agents for protecting useful plants or crop plants comprising them, methods for producing them and their use as safeners

A compound of general formula (I) or salt thereof

• in which
• R1 is independently halogen, cyano, nitro, (C1-C6)-alkyl, (C2-C6)-alkenyl, (C2-C6)-alkynyl, (C3-C8)-cycloalkyl, (C3-C8)-cycloalkenyl, (C1-C6)-alkoxy or (C1-C6)-alkyl-S(O)p, where the latter seven radicals are unsubstituted or substituted by one already more radicals from the group of halogen, cyano, (C1-C6)-alkoxy and (C1-C6)-alkyl-S(O)p,
• R2 is independently halogen, cyano, nitro, (C1-C6)-alkyl, (C2-C6)-alkenyl, (C2-C6)-alkynyl, (C3-C8)-cycloalkyl, (C3-C8)-cycloalkenyl, (C1-C6)-alkoxy or (C1-C6)-alkyl-S(O)p, where the latter seven radicals are unsubstituted or substituted by one already more radicals from the group of halogen, cyano, (C1-C6)-alkoxy and (C1-C6)-alkyl-S(O)p,
• R3 is hydrogen or (C1-C6)-alkyl,
• R4 is hydrogen, (C1-C18)-alkyl, (C1-C18)-haloalkyl, (C1-C18)-cyanoalkyl, (C2-C18)-alkenyl, (C2-C18)-alkynyl, (C3-C12)-cycloalkyl, (C3-C12)-cycloalkenyl, aryl, heteroaryl, (C1-C18)-alkoxy-(C1-C18)-alkyl, (C1-C18)-haloalkoxy-(C1-C18)-alkyl, (C1-C18)-alkoxy-(C1-C18)-haloalkyl, (C1-C18)-alkylthio-(C1-C18)-alkyl, (C1-C18)-haloalkylthio-(C1-C18)-alkyl, (C2-C18)-haloalkenyl, (C2-C18)-haloalkynyl, heterocyclyl-(C1-C18)-alkyl, aryl-(C1-C18)-alkyl, (C3-C12)-cycloalkyl-(C1-C18)-alkyl, (C1-C18)-alkoxycarbonyl-(C1-C18)-alkyl, or (C1-C18)-alkoxycarbonyl-(C3-C12)-cycloalkyl-(C1-C18)-alkyl, or
• is a radical of the formula —NRaRb or —N═CRcRd,
• where, in the former 2 radicals, each of the Ra, Rb, Rc and Rd radicals is independently hydrogen, (C1-C4)-alkyl, (C2-C4)-alkenyl, (C2-C4)-alkynyl, benzyl, substituted benzyl, phenyl or substituted phenyl,
• or Ra and Rb together with the nitrogen atom may form a 3- to 8-membered heterocycle which, in addition to the nitrogen atom, may contain one or two further ring heteroatoms from the group of N, O and S and which is unsubstituted or substituted by one or more radicals from the group of (C1-C4)-alkyl and (C1-C4)-haloalkyl,
• or Rc and Rd together with the carbon atom are a 3- to 8-membered carbocyclic or heterocyclic radical which may contain 1 to 3 ring heteroatoms from the group of N, O and S, where the carbocyclic or heterocyclic radical is unsubstituted or substituted by one or more radicals from the group of (C1-C4)-alkyl and (C1-C4)-haloalkyl,
• R5 is bromine or iodine,
• m is a number from 1 to 4,
• n is a number from 0 to 5,
• and
• p is 0, 1 or 2.