Sodium Hydroxide → L-Lysine

HRID 259411

Reaktionsgleichung

Reaktionsgleichung von HRID 259411
Cl.[NH2:2][C@H:3]([C:9]([OH:11])=[O:10])[CH2:4][CH2:5][CH2:6][CH2:7][NH2:8].[OH-].[Na+]>C(O)C>[NH2:2][C@H:3]([C:9]([OH:11])=[O:10])[CH2:4][CH2:5][CH2:6][CH2:7][NH2:8]

Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 69568L-Lysine monohydrochloride

Produkt 1

HCID 5962L-LysineAusbeute 97,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

Into the reaction apparatus used in Example 1, 160 g of ethyl alcohol, 18.3 g of lysine hydrochloride and 4.0 g of sodium hydroxide were charged. The resulting mixture was heated, refluxing the solvent, while being stirred, and was kept for 3 hours. The resultant product was cooled to room temperature and the by-product sodium chloride was filtered off therefrom. The solvent was distilled off from the obtained product to obtain 14.3 g of lysine in a syrup state. The lysine obtained, 15.8 g of allantoin and 150 ml of water were charged into the apparatus.

Aufarbeitung

  1. additionwere charged
  2. temperatureThe resulting mixture was heated
  3. temperaturerefluxing the solvent
  4. filtrationthe by-product sodium chloride was filtered off
  5. distillationThe solvent was distilled off from the obtained product

Quellen und Nachweise

ORD-Eintrag
ord-26ef38e707344f00b1bbdc6e88b1c41d
Quelldatensatz
uspto-grants-1977_07
Patentnummer
US04038287

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