Preparation of hydroquinone monocarboxylates
US5183928A · kind A · utility
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11Claims
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Key dates
| Filing date | Feb 26, 1988 |
| Grant date | Feb 2, 1993 |
| Priority date | — |
| Expiry date | Feb 26, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A hydroquinone monocarboxylate, e.g., hydroquinone monoacetate, is facilely prepared by disproportionating/reacting a stoichiometric excess of a hydroquinone dicarboxylate, e.g., hydroquinone diacetate, with hydroquinone, optionally in the presence of a strong acid/transesterification catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.