Method of manufacturing cis-2,6-dimethylmorpholine

Method of manufacturing cis-2,6-dimethylmorpholine

Cis-2,6-dimethylmorpholine is manufactured by catalytic isomerization of trans-2,6-dimethylmorpholine. A previously hydrogen-activated copper chromite catalyst is used for catalytic isomerization of the trans-2,6-dimethylmorpholine. The catalyst preferably also contains barium oxide and/or manganese...

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Bibliographische Detailangaben
Hauptverfasser: DISTELDORF, JOSEF, BORSDORFF, HORST-WOLFRAM, HUEBEL, WERNER, BROSCHINSKI, LOTHAR, RINDTORFF, KLAUS
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:Cis-2,6-dimethylmorpholine is manufactured by catalytic isomerization of trans-2,6-dimethylmorpholine. A previously hydrogen-activated copper chromite catalyst is used for catalytic isomerization of the trans-2,6-dimethylmorpholine. The catalyst preferably also contains barium oxide and/or manganese dioxide. The process is carried out at 180 DEG -300 DEG C. and 1-500 bar absolute. The inexpensive novel catalyst enables conversions which are better than those with known methods.