Manufacturing method for 2-hydroxynaphthalene-6-carboxylic acid
US5011984A · kind A · utility
2Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1990 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Apr 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/15
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a production of 2-hydroxynaphthalene-6-carboxylic acid improved in the yield and the selective ratio, in which .beta.-naphthol and water formed in the reaction system are eliminated therefrom through the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.