Process for the hydroxylation of aromatic compounds
US4301307A · kind A · utility
8Cited by
6References
17Claims
0Family size
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Inventor
Key dates
| Filing date | Dec 20, 1979 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aromatic hydrocarbons and particularly phenols and phenol ethers can be hydroxylated by reacting the aromatic compound with hydrogen peroxide in a reaction medium comprising trifluoromethanesulfonic acid. High yields of hydroxylated aromatic compounds are obtained by this process which avoids the use of extremely corrosive and difficult to handle agents. Phenol is hydroxylated predominantly to hydroquinone by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.