METHOD FOR SYNTHESIS OF GAMMA-AMINOBUTYRIC ACID FROM GLUTAMIC ACID USING HIGH-TEMPERATURE AND HIGH-PRESSURE WATER

PROBLEM TO BE SOLVED: To provide a method for synthesizing γ-aminobutyric acid from glutamic acid by a high-temperature high-pressure water reaction. SOLUTION: Gamma-aminobutyric acid is synthesized by the high-temperature high-pressure water reaction of glutamic acid (preferably at 280-300°C). The...

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Hauptverfasser:	WATABE MASAFUMI, SATO NOBUAKI, FUJIE KOICHI, DAIMON HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for synthesizing γ-aminobutyric acid from glutamic acid by a high-temperature high-pressure water reaction. SOLUTION: Gamma-aminobutyric acid is synthesized by the high-temperature high-pressure water reaction of glutamic acid (preferably at 280-300°C). The production efficiency of the γ-aminobutyric acid is remarkably improved by adding a substance capable of reacting with the amino group of glutamic acid to form a Schiff's base (e.g. pyruvic acid) before the reaction. COPYRIGHT: (C)2005,JPO&NCIPI