Method for the hydroxylation of halogenated aryl compounds, comprising a hydroxylation reaction conducted at a temperature lower than 150°C, in the presence of a catalytic system consisting in a copper-based catalyst and a ligand L according to the following reaction scheme: ◆ R is selected in the group consisting of acceptor inductive effect groups chosen in the group consisting of NO 2 group, esters, CN group, halogen atom, alkoxy group, and donor mesomer effect groups chosen in the group consisting of phenyl group, hydroxyl group, C1-C10, preferably C1-C6, linear or branched alkyl, halogen atom, hydrogen atom, alkoxy group or R for together with the phenyl a naphtyl group; ◆ r being between 0 and 5; ◆ X being a halogen atom; ◆ M being selected in the group consisting of alkaline or alkaline-earth cations; ◆ L represents a compound of formula where # X', X", the same or different, are selected in the group consisting of the nitrogen atom, the C=O group, the C=S goup and the C-OH group; ◆ m 1 to m 8, the same or different, represent 0 or 1; ◆ n represents 1 or 2; ◆ R 1, R 2, R 3, R 4, R 5, R 6, R 7 and R 8, the same or different, are selected in the group consisting of: - a hydrogen atom; - a branched, linear, monocyclic or polycyclic hydrocarbon group comprising 1 to 20 carbon atoms and possibly comprising one or unsaturations in the form of double and/or triple bond(s), preferably methyl, isobutyl, phenyl; - a primary, secondary or tetriary -NR'R" amine, wherein R' and R", the same or different, represent a C 1 to C 10 alkyl group, preferably C 1 to C 6, linear or branched, preferably methyl; - a hydroxyl group; ◆ or R 4, X" and R 7 form a heterocyclic group, preferably pyrrolidine; ◆ or R 1, X' and R 7 form a phenol group; ◆ or R 1, X', X", R 7 and R 4 form a polycyclic group formed of at least 3 saturated and/or unsaturated rings, or of at least 3 rings of which only one or two thereof is (are) aromatic and forming between them, ortho- or ortho- and peri-condensed systems, preferably the phenanthroline group. ◆ R is selected in the group consisting of acceptor inductive effect groups chosen in the group consisting of NO 2 group, esters, CN group, halogen atom, alkoxy group, and donor mesomer effect groups chosen in the group consisting of phenyl group, hydroxyl group, C1-C10, preferably C1-C6, linear or branched alkyl, halogen atom, hydrogen atom, alkoxy group or R for together with the phenyl a naphtyl group; ◆ r being between 0 and 5; ◆ X being a halogen atom; ◆ M being selected in the group consisting of alkaline or alkaline-earth cations; ◆ L represents a compound of formula where # X', X", the same or different, are selected in the group consisting of the nitrogen atom, the C=O group, the C=S goup and the C-OH group; ◆ m 1 to m 8, the same or different, represent 0 or 1; ◆ n represents 1 or 2; ◆ R 1, R 2, R 3, R 4, R 5, R 6, R 7 and R 8, the same or different, are selected in the group consisting of: - a hydrogen atom; - a branched, linear, monocyclic or polycyclic hydrocarbon group comprising 1 to 20 carbon atoms and possibly comprising one or unsaturations in the form of double and/or triple bond(s), preferably methyl, isobutyl, phenyl; - a primary, secondary or tetriary -NR'R" amine, wherein R' and R", the same or different, represent a C 1 to C 10 alkyl group, preferably C 1 to C 6, linear or branched, preferably methyl; - a hydroxyl group; - a hydrogen atom; - a branched, linear, monocyclic or polycyclic hydrocarbon group comprising 1 to 20 carbon atoms and possibly comprising one or unsaturations in the form of double and/or triple bond(s), preferably methyl, isobutyl, phenyl; - a primary, secondary or tetriary -NR'R" amine, wherein R' and R", the same or different, represent a C 1 to C 10 alkyl group, preferably C 1 to C 6, linear or branched, preferably methyl; - a hydroxyl group; ◆ or R 4, X" and R 7 form a heterocyclic group, preferably pyrrolidine; ◆ or R 1, X' and R 7 form a phenol group; ◆ or R 1, X', X", R 7 and R 4 form a polycyclic group formed of at least 3 saturated and/or unsaturated rings, or of at least 3 rings of which only one or two thereof is (are) aromatic and forming between them, ortho- or ortho- and peri-condensed systems, preferably the phenanthroline group.