Hydroxylation of aromatic compounds
US3943179A · kind A · utility
9Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1973 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Sep 27, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Phenols and phenol ethers are hydroxylated with hydrogen peroxide in the presence of sulphur, selenium, tellurium, phosphorus, arsenic or antimony. High yields of dihydric materials are obtained by this process which avoids the need to use peracids or very strong acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.