Azo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates therefor
US4673735A · kind A · utility
8Cited by
5References
13Claims
0Family size
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Key dates
| Filing date | Apr 9, 1984 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Apr 9, 2004 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/41
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of formula I ##STR1## in metal-free; 1:1 or 1:2 metal complex form and, when an acid group is present, in free acid or acid addition salt form, in which R.sub.1 is hydrogen or --N.dbd.N--D where D is a diazo component and R, T and B are organic radicals defined in the text.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.