Chlorination of ortho-substituted phenols
US4885408A · kind A · utility
2Cited by
2References
21Claims
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Assignee
Inventors
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/62
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The ortho-substituted phenols, e.g., 2,6-dichlorophenol, are reacted with gaseous chlorine, in the presence of a catalytically effective amount of a strong or Lewis acid, to produce, e.g., a more pure 2,4,6-trichlorophenol in good yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.