ES373837A1 - Procedure for the obtaining of azoic colorants. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Procedure for obtaining azo dyes of the formula **(See formula)** where X1 signifies the remainder of a coupling component of the amino or hydroxybenzene series, of the heterocyclic series, of the amino or hydroxynaphthalene series or with a methylene radical capable of coupling, Y means the direct bond or a bivalent bridging member, p is 0 to 3 and A ⊖ means an anion equivalent to and K ⊕ 1 and K1 means the group **(See formula)** wherein R1 is an alkyl or cycloalkyl radical, optionally substituted, or together with R2 and the adjacent nitrogen atom means a heterocycle, R2 is an alkyl or cycloalkyl radical, optionally substituted or together with R1 and the atom of adjacent nitrogen means a heterocycle, R3 and R4 signify a hydrogen atom or the same or different, if substituted, alkyl or cycloalkyl moieties, or the same or different acyl moieties, R8, R9 and R10 each mean an alkyl moiety or cycloalkyl, optionally substituted, R1 together with R3 and/or R2 together with R4 and the adjacent nitrogen atoms or these substituents and R8 and R9 or R8, R9 and R10 together with the adjacent nitrogen atoms form heterocycles and rings aromatics B and/or D may be further substituted, characterized in that it comprises coupling the diazo compound of an amine of formula: **(See formula)** with a coupling component of formula, H-X1-Y-K ⊕ 1 (XVI). (Machine-translation by Google Translate, not legally binding)