Catalytic hydroxylation of phenols/phenol ethers
US5097078A · kind A · utility
2Cited by
10References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 6, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Jul 6, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The phenols and phenol ethers are hydroxylated by reacting such phenols/phenol ethers with hydrogen peroxide, in the presence of (a) a catalytically effective amount of an alkali metal or alkaline earth metal salt of at least one protonic acid having a pKa in water of less than -0.1, and (b) an effective amount of at least one phosphorus oxyacid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.