发明授权
US4591635A Sulfo group-free polyazo compounds containing at least two basic water-solubilizing groups in metal-free or metal complex form 失效
含有无金属或金属络合物形式的至少两个碱性水溶性基团的无磺基的多偶氮化合物

Sulfo group-free polyazo compounds containing at least two basic
water-solubilizing groups in metal-free or metal complex form
摘要:
Metal-free compounds and 1:1 and 1:2 metal complexes of the formula ##STR1## or a 1:2 metal complex of a metal-free compound of said formula and a metallizable azo compound not of said formula, whereineach K is independently a coupling component radical of the pyrazolone-5, 5-aminopyrazole, pyridone, 2,6-diaminopyridine, .beta.-naphthol, acetic acid ester, acetic acid amide or N-substituted N,N-disubstituted aniline series,each K.sub.1 is independently ##STR2## wherein R.sub.3 is hydrogen, C.sub.1-4 alkyl, phenyl or benzyl,R.sub.4 is C.sub.1-4 alkyl, (C.sub.1-4 alkoxy)-carbonyl or --CO--N(R.sub.8).sub.2, wherein each R.sub.8 is independently hydrogen or C.sub.1-4 alkyl,R.sub.5 is amino or hydroxy,R.sub.5a is hydroxy,T is hydrogen, cyano, ##STR3## or (C.sub.1-4 alkyl)carbonyl, wherein R.sub.7, R.sub.10, R.sub.12, Z.sub.a and A.crclbar. are as defined in the specification,each R.sub.1 is independently hydrogen, halo, hydroxy, C.sub.1-4 alkoxy or C.sub.1-4 alkyl, orR.sub.1 and R.sub.5, located on rings attached to the same azo radical, are --O--Me--NH or --O--Me--O--, wherein Me is a 1:1 or 1:2 metal complex-forming metal ion, orR.sub.1 and R.sub.5a, located on rings attached to the same azo radical, are --O--Me--O--, wherein Me is as defined above,each R.sub.2 is independently hydrogen, halo, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,X is a direct bond or a bridging radical as defined in the specification, andeach q is independently 0 or 1,with the provisos that (i) the compound of Formula I has at least two basic water-solubilizing groups, and (ii) each end of X is in a 3- or 4-position of the Ring A to which it is attached, which metal-free compounds and 1:1 and 1:2 metal complexes are useful as dyes, particularly for paper and leather.
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