Process for the preparation of alkaline phenylpyrovate
US4997979A · kind A · utility
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25Claims
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Key dates
| Filing date | Apr 4, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Apr 4, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of alkaline phenylpyruvate by carbonylation of benxzyl chloride in the presence of a cobalt catalyst. The alkaline phenylpyruvate is useful as an intermediate in the preparation of phenylalanine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.