Preparation of P-fuchsones and synthesis of P-Dihydroxylated aromatic compounds therefrom
US5585526A · kind A · utility
11Cited by
5References
15Claims
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Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/753
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
p-Dihydroxylated aromatic compounds are prepared via the oxidation of p-fuchsones, the latter advantageously being synthesized by reacting a phenolic compound having at least one hydrogen atom in the para-position to the hydroxyl function with a non-enolizable ketonic compound, in the presence of a catalytically effective amount of an acid catalyst and, optionally, a cocatalytically effective amount of an ionizable sulfur-containing compound.
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