PROCESS FOR PRODUCING D,L-HOMOCYSTINE (II)

PROCESS FOR PRODUCING D,L-HOMOCYSTINE (II)

D,L-homocystine is produced by injecting molecular oxygen into an aqueous solution of the disodium salt of D,L-homocysteine having a concentration of between 0.8 and 1.2 moles per litre and an initial pH of between 7.0 and 8.0 in the presence of catalytic amounts of ions of a heavy metal, which can...

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Bibliographische Detailangaben
Hauptverfasser: LUESSLING, THEODOR, SCHAEFER, FRITZ, KARRENBAUER, MICHAEL, KLEEMANN, AXEL
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:D,L-homocystine is produced by injecting molecular oxygen into an aqueous solution of the disodium salt of D,L-homocysteine having a concentration of between 0.8 and 1.2 moles per litre and an initial pH of between 7.0 and 8.0 in the presence of catalytic amounts of ions of a heavy metal, which can be in several valence stages, until an increase in the pH value can no longer be observed and the pH is subsequently adjusted to approximately 5.3 while stirring. Suitable heavy metal ions are particularly Fe3+ or Cu2+ ions.