Method of preparing d,l-phenylalanine
A process for preparing an alkali salt of d,l-phenylalanine and the free acid thereof is disclosed. According to the invention an alkali salt of phenylpyruvic acid is reacted at elevated pressure with hydrogen and ammonia in the presence of a noble metal catalyst of Group VIII. If the acid is desire...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for preparing an alkali salt of d,l-phenylalanine and the free acid thereof is disclosed. According to the invention an alkali salt of phenylpyruvic acid is reacted at elevated pressure with hydrogen and ammonia in the presence of a noble metal catalyst of Group VIII. If the acid is desired it is obtained by acidification of the corresponding salt. |
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