Dye intermediates
US5973178A · kind A · utility
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2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | May 20, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/091
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula: ##STR1## wherein: A is hydrogen, a substituted or unsubstituted C.sub.1 to C.sub.4 alkyl, a substituted or unsubstituted C.sub.1 to C.sub.4 alkoxy or a substituted or unsubstituted phenyl; PA1 W is a substituted or unsubstituted phenylene or a substituted or unsubstituted naphthylene; PA1 Y is--CH.sub.2 --CH.sub.2 --Z wherein Z is selected from --OSO.sub.3 H, --SSO.sub.3 H, --OPO.sub.3 H, --OCOCH.sub.2 --Cll.sub.3, Cl, Br or F; and PA1 m is 1 or 2, e is 0 or 1, PA1 with the sum of e+m=2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.