Process for the isomerization of ortho-and para-bromophenols or the ethers thereof into meta-bromophenols and corresponding ethers
US4447660A · kind A · utility
3Cited by
2References
6Claims
0Family size
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Key dates
| Filing date | Sep 30, 1982 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the isomerization of ortho- and para-bromophenols or the ethers thereof into corresponding meta-brominated derivatives by isomerizing ortho- and para-bromophenols in the corresponding ethers in the presence of a liquid superacid at a temperature in the region of ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.