ES365501A1 - PROCEDURE FOR OBTAINING BASIC ANTRAQUINONI-COS DYES. - Google Patents

Abstract

Procedure for obtaining basic anthraquinone dyes, free of sulfonic acid groups, of the formula: X 0 OH **(See formula)** wherein at least one of the symbols X and W signifies an alkyl- or arylamino radical, optionally further substituted, A ⊖ is an anion equivalent to the dye cation and K1 ⊕ means a radical of formula: **(See formula)** wherein R1 is an alkyl or cycloalkyl radical, optionally substituted or together with R2 and the adjacent N-atom a heterocycle, R2 is an alkyl or cycloalkyl radical, optionally substituted or together with R1 and the adjacent N-atom a heterocycle, R3 and R4 signify hydrogen or moieties which are the same or different from each other, optionally substituted, alkyl or cycloalkyl, or acyl moieties which are the same or different from each other and R9, R10 and R11 each mean an alkyl or cycloalkyl moiety, in case given substituted, R1 together with R3 and/or R2 together with R4 and the N-atoms adjacent to these substituents and R5 and R6 or R9, R10 and R11 together with the adjacent N-atom may form heterocycles, rings 3 and/or D may be further substituted and the radical -ZYV-K1 ⊕] is in one of the 2'or 4' positions, Z represents an oxygen or sulfur atom, Y represents a direct bond or, optionally substituted, arylene moiety, which is linked to V directly or through a heteroatom or a gr upo heteroatom and V means an alkylene moiety, optionally substituted, which may be interrupted by heteroatoms or heteroatoms, characterized in that an anthraquinone compound of formula (I) in which at least one of the symbols X or W signify a primary amino radical, is alkylated or aryl. (Machine-translation by Google Translate, not legally binding)