Title:
PREPARATION OF THREONINE
Document Type and Number:
Japanese Patent JPS6041646
Kind Code:
A
Abstract:
PURPOSE: To obtain threonine useful as an amino acid-enriched raw material for foods, feed, etc., by reacting an α-amino-β-halogenobutyronitrile with a carbonate, hydrolyzing the reaction product.
CONSTITUTION: An α-amino-β-halogenobutyronitrile, α-amino-β-halogenobutyric acid, or its salt is reacted with a hydrogencarbonate in water or a water-containing organic solvent at 10W100°C to give 2-oxo-4-cyano(or carboxy-5-methyloxazolidine. This compound is hydrolyzed with an acid or alkali at 50W150°C for 0.5W20hr, to give the desired substance.
Inventors:
KAMETAKA TOKUO
SOYA SUMIO
HIROMOTO KAZUHIKO
ISHIOKA RIYOUJI
SOYA SUMIO
HIROMOTO KAZUHIKO
ISHIOKA RIYOUJI
Application Number:
JP14802083A
Publication Date:
March 05, 1985
Filing Date:
August 15, 1983
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
C07C227/26; C07C67/00; C07C227/00; C07C227/22; C07C229/22; C07D263/20; (IPC1-7): C07C99/00; C07C101/30
Attorney, Agent or Firm:
Minoru Terada