Process for preparing 3,4-dihydroxy-benzonitrile
US6790977B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing 3,4-dihydroxybenzonitrile includes the steps of reacting a nitrile compound with an alkali metal halide, followed by treating with an acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.