Use of metal-free azo _compounds having at least one _6-hydroxypyrid-2-one _coupling component radical and metal _complexes thereof for dyeing _substrates and substrates dyed therewith
US4780106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Jun 10, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/41
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Metal-free compounds of the formula ##STR1## 1:1 and 1:2 metal complexes thereof, and acid addition salts of metal-free compounds of said formula and 1:1 and 1:2 metal complexes thereof, wherein PA1 B is hydrogen; C.sub.1-4 alkyl; C.sub.1-4 alkyl monosubstituted by C.sub.1-4 alkoxy; C.sub.2-4 alkyl substituted by hydroxy; C.sub.5-6 cycloalkyl; C.sub.5-6 cycloalkyl substituted by 1 to 3 C.sub.1-4 alkyl groups; phenyl(C.sub.1-3 alkyl); phenyl(C.sub.1-3 alkyl) the phenyl group of which is substituted by 1 to 3 substituents selected from C.sub.1-4 alkyl, C.sub.1-4 alkoxy and halo; --A--NH--R.sub.2 ; --A'.sub.4 --N(R.sub.7).sub.2 ; --A.sub.4 --N.sup..sym. (R.sub.8).sub.2 R.sub.9 A.sup..crclbar. or --N(R.sub.7).sub.2, PA1 R is hydrogen; C.sub.1-4 alkyl; C.sub.5-6 cycloalkyl; C.sub.5-6 cycloalkyl substituted by 1 or 2 C.sub.1-4 alkyl groups; phenyl; phenyl substituted by 1 or 2 substituents selected from methyl, ethyl, methoxy and ethoxy; benzyl; phenylethyl; or benzyl or phenylethyl the phenyl group of which is substituted by 1 or 2 substituents selected from methyl, ethyl, methoxy and ethoxy, PA1 R.sub.1 is hydrogen or --N.dbd.N--D, wherein D is a diazo component radical, with the provi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.