TRICATIONIC DYES

摘要

Disclosed are compounds of formula (I); wherein D is an aromatic or a cationic heteroaromatic group, which is optionally substituted by C₁-C₁₄alkyl, C₁-C₁₄alkoxy, hydroxy-C₁-C₁₄alkyl, C₃-C₈cycloalkyl, -CN, NO₂, -NR₃R₄, halogen, C₆-C₁₀aryl, which is optionally substituted or C₁-C₁₄alkyl, or by one or more groups Z; E₁ and E₂ independently from each other are =CH; or =N-; K is an aromatic or heteroaromatic group which is optionally substituted by C₁-C₁₄alkyl, C₁-C₁₄alkoxy, C₃-C₈cycloalkyl, C₆-C₁₀aryl, halogen, hydroxy, NO₂, -NR₃R₄, -N(R₃)(CO)R₄, -SO₂NR₁R₂, -SONR₁R₂ or by one or more Z; or a radical of formula -NR₁R₂; R₁ and R₂ independently from each other are hydrogen; C₁-C₁₄alkyl; cyclo-C₁-C₁₄alkyl; C₆- C₁₀aryl; an aromatic or heteroaromatic group which is optionally substituted by C₁- C₁₄alkyl, C₁-C₁₄alkoxy, C₃-C₈cycloalkyl, C₆-C₁₀aryl, halogen, hydroxy, -NR₅R₆, -N(R₅)-(CO)R₅ or by Z; Z is a group of the formula (1 a) *- X₁-Y₁-W₁, wherein X₁ is the direct bond; -NR₇-; -0-; -NR₇(C=O)-; -(CO)NR₇-; -0(C=O)-; -(CO)O-; or -(C=O)-; Y₁ is the direct bond; C₁-C₁₂alkylene, which is optionally interrupted by -0-, -NR₈, -S-, -(C=O)-, -0(C=O)-, (C=O)O-, -NR₇(C=O)-, -(C=O)NR₇-, and which may substituted by C₁-C₁₄alkyl, hydroxy-C₁-C₁₄alkyl, hydroxy, -NR₉R₁₀ or halogen; or C₆-C₁₀arylene, which may substituted by C₁-C₁₄alkyl, hydroxy-C₁-C₁₄alkyl, hydroxy, amino or halogen; W₁ is a cationic group; and R₃, R₄, R₅, R₆, R₇, R₈, R₉ and R₁₀ independently from each other are hydrogen; C₁-C₁₄alkyl; or Z; and An₁-, An₂- and An₃- independently from each other are an anion. The compounds are useful for dyeing of organic materials, such as keratin-containing fibers, wool, leather, silk, cellulose or polyamides, especially keratin-containing fibers, cotton or nylon, more preferably human hair.