Method of preparing d,l-phenylalanine
AssigneeDynamit Nobel Aktiengesellschaft
InventorsHelmut aus der Funten, Klaus Schrage
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Abstract
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.
Claims11
A method for preparing an alkali salt of d,l-phenylanine, which comprises containing an alkali salt of phenylpyruvic acid with hydrogen and ammonia at elevated pressure in the presence of a noble metal catalyst of Group VIII of the Periodic Table.
Dependencies are inferred from the claim text.