| abstract |
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. |