Process for the preparation of metachlorophenols
US4540834A · kind A · utility
1Cited by
6References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Mar 2, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the preparation of metachlorophenols. The process consists in selectively hydrodechlorinating, under the action of heat and in the liquid phase, polychlorophenols containing at least one chlorine atom in the meta position relative to the phenolic hydroxyl, by reacting these polychlorophenols with hydriodic acid in a quantity which is sufficient in relation to the chlorine atoms to be removed. The metachlorophenols obtained are organic synthesis intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.