Hydroxylation of phenols/phenol ethers
US5245086A · kind A · utility
3Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1990 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Dec 5, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The phenols/phenol ethers are hydroxylated by reaction with hydrogen peroxide, in the presence of a catalytically effective amount of (a) at least one alkali metal or alkaline earth metal salt of a protonic acid having a pKa in water of less than -0.1 and (b) a free protonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.