PURIFICATION OF DIHYDROXYAMINO COMPOUND

PURIFICATION OF DIHYDROXYAMINO COMPOUND

PROBLEM TO BE SOLVED: To provide a method for purifying a dihydroxyamino compound, capable of removing water and a discolored component while preventing decomposition of the dihydroxyamino compound. SOLUTION: A crude reaction solution containing a dihydroxyamino compound of the formula (R , R , R ,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HORIGUCHI AKIRA, TAKABE AKIHISA
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for purifying a dihydroxyamino compound, capable of removing water and a discolored component while preventing decomposition of the dihydroxyamino compound. SOLUTION: A crude reaction solution containing a dihydroxyamino compound of the formula (R , R , R , R , R , R and R are each H or any of substituent groups of an alkyl group, an alkenyl group and an alkoxy group) is distilled under 0.1-30mmHg column top pressure of a distillation apparatus at 60-200 deg.C, distilled vapor is cooled to 40-180 deg.C, the dihydroxyamino compound is separated from water and a low-boiling component to give the dihydroxy amino compound having