Process for the preparation of 1-chloro-2-hydroxy-3-naphthoic acid
US4175208A · kind A · utility
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Key dates
| Filing date | Jan 5, 1979 |
| Grant date | Nov 20, 1979 |
| Priority date | — |
| Expiry date | Jan 5, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/363
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1-Chloro-2-hydroxy-3-naphthoic acid is prepared by chlorination using an alkali metal or alkaline earth metal hypochlorite. The compound is useful as a dye modifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.