Process for producing d,l-homocystine (ii)

Details Process for producing d,l-homocystine (ii) Process for producing d,l-homocystine (ii)

C - Chemistry, Metallurgy

07

C

260/523.1

C07C 149/243 (1985.01)

Patent

CA 1223887

ABSTRACT OF THE DISCLOSURE 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 obser- ved and the pH is subsequently adjusted to approximately 5.3 while stirring. Suitable heavy metal ions are particularly Fe3+ or Cu2+ ions.

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