Use of hydroxyaromatics as safeners

A method for protecting useful plants or crop plants against phytotoxic side-effects of agrochemicals, which method comprises applying compounds of the formula (I) or salts thereof,

• in which
• R1 is a radical of the formula —C(═O)—Y—R,
• in which
• Y is a group of the formula O or NRc, where Rc is defined below,
• R is hydrogen, (C1-C8-alkyl, (C2-C8)-alkenyl, (C2-C8)-alkynyl, (C3-C6)-cycloalkyl or (C3-C6)-cycloalkyl-(C1-C4)-alkyl,
• where each of the 5 last-mentioned radicals is unsubstituted or substituted by one or more radicals selected from the group consisting of halogen, hydroxyl, (C1-C4)-alkoxy, (C1-C4)-haloalkoxy, (C1-C4)-alkylthio, (C1-C4)-alkylsulfinyl, (C1-C4)-alkylsulfonyl, mono-(C1-C4)-alkylamino, di-(C1-C4)-alkylamino, (C1-C4)-alkanoyl, (C1-C4)-haloalkanoyl, [(C1-C4)-alkoxy]carbonyl and, in the case of cyclic radicals, also (C1-C4)-alkyl and (C1-C4)-haloalkyl,
• where Rc in the radical Y, independently of the radical R, is as defined for R or a radical of the formula —OR*, where R*, independently of R, is as defined for R,
• R2 is hydrogen or an acyl radical selected from the group consisting of the radicals (C1-C6)-alkanoyl and (C1-C4)-haloalkanoyl,
• (R3)n are n radicals R3, where each of the radicals R3 independently of the others is selected from the group consisting of the radicals halogen, SCN, CN and
• (C1-C4)-alkyl, (C2-C4)-alkenyl, (C2-C4)-alkynyl and (C3-C6)-cycloalkyl,
• where each of the 4 last-mentioned radicals is unsubstituted or substituted by one or more radicals selected from the group consisting of halogen, hydroxyl, (C1-C4)-alkoxy, (C1-C4)-haloalkoxy, (C1-C4)-alkylthio, (C1-C4)-alkylsulfinyl, (C1-C4)-alkylsulfonyl, (C1-C4)-alkanoyl, (C1-C4)-haloalkanoyl, [(C1-C4)-alkoxy]carbonyl and, in the case of cyclic radicals, also (C1-C4)-alkyl and (C1-C4)-haloalkyl, and radicals of the formula —Z*-A,
• where
• Z* is a group of the formula O, and
• A is hydrogen or
• (C1-C4)-alkyl, (C2-C4)-alkenyl, (C2-C4)-alkynyl, (C3-C6)-cycloalkyl,
• where each of the 4 last-mentioned radicals is unsubstituted or substituted by one or more radicals selected from the group consisting of halogen, hydroxyl, (C1-C4)-alkoxy, (C1-C4)-haloalkoxy, (C1-C4)-alkylthio, (C1-C4)-alkylsulfinyl, (C1-C4)-alkylsulfonyl, (C1-C4)-alkanoyl, (C1-C4)-haloalkanoyl, [(C1-C4)-alkoxy]carbonyl and, in the case of cyclic radicals, also (C1-C4)-alkyl and (C1-C4)-haloalkyl, or an acyl radical, wherein the acyl radical is selected from the group consisting of the radicals (C1-C4)-alkanoyl, (C1-C4)-haloalkanoyl, [(C1-C4)-alkoxy]carbonyl, [(C1-C4)-haloalkoxy]carbonyl,
• Z is a group of the formula O, and
• n is an integer 0, 1, 2, 3 or 4,
• as safeners for crop plants,
• and wherein the agrochemicals comprise one or more herbicides selected from the group consisting of the benzoylcyclohexanediones, benzoylisoxazoles, benzoylpyrazoles, sulfonylureas and sulfonylaminocarbonyltriazolinones.