Benzoxazolyl-phenyl-stilbenes
US4206072A · kind A · utility
4Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1978 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D263/56
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Benzoxazolyl-phenyl-stilbenes of the formula ##STR1## in which X is a carboxylic acid group or an ester or amide thereof, a phenyl sulphonate group or a sulphonamide group, a cyano group or alkylsulphonyl and the ring A can be substituted by alkyl having 1 to 4 C atoms, phenyl, chlorine, alkoxy having 1 to 4 C atoms, phenoxy, cyano, alkylsulphonyl having 1 to 4 C atoms, phenylsulphonyl or alkoxycarbonyl having 2 to 6 C atoms, a process for their manufacture as well as their use for the optical brightening are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.