Processes for preparing 3.3-dimethylbutyric acid
US6686501B2 · kind B2 · utility
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4References
20Claims
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Inventor
Key dates
| Filing date | Feb 5, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Feb 5, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/353
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing 3,3-dimethylbutyric acid includes the steps of reacting trimethylpyruvic acid with a first portion of hydrazine to obtain a ketazine, and treating the ketazine with base and a second portion of hydrazine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.