Novel p-aminophenols and colorants containing said compounds

p-Aminophenol derivatives of general formula (I) or physiologically tolerated, water-soluble salts thereof

• 6
• wherein
• X denotes oxygen, sulfur or NR5,
• R1 denotes hydrogen, a halogen atom, a C1-C4-alkyl group, a C1-C4-hydroxyalkyl group or a C1-C4-alkoxy group;
• R2 and R4 independently of each other denote hydrogen, a hydroxyl group, a halogen atom, a cyano group, a C1-C4-alkoxy group, a C1-C6-alkyl group, a C1-C4-alkyl thioether group, a mercapto group, a nitro group, an amino group, a C1-C6-alkylamino group, a (C1-C6)-dialkylamino group, a —C(OH) group, a —C(O)CH3 group, a —C(O)CF3 group, an —Si(CH3)3 group, a C1-C4-hydroxyalkyl group, a C3-C4-dihydroxyalkyl group, a —CH═CHR6 group, a —(CH2)p-CO2R7 group or a —(CH2)p-R8 group (with p=1, 2, 3 or 4), a —C(R9)═NR10 group or a C(R11)H-NR12R13 group;
• R3 denotes hydrogen, a halogen atom, a C1-C6- alkyl group or a —C(O)H group;
• R5 denotes hydrogen, a C1-C6-alkyl group, a C1-C4-hydroxyalkyl group, a phenyl group or an acetyl group;
• R6 denotes hydrogen, a hydroxyl group, a nitro group, an amino group, a —CO2R7 group or a —C(O)CH3 group;
• R7, R9 and R11 independently of each other denote hydrogen or a C1-C4-alkyl group;
• R8 denotes an amino group or a nitrile group;
• R10, R12 and R13 independently of each other denote hydrogen, a hydroxyl group, a C1-C4-alkyl group, a C1-C4-hydroxyalkyl group, a C3-C4-dihydroxyalkyl group or a radical of formula (II)
• 7
• and
• R14 denotes hydrogen, an amino group or a hydroxyl group.