Method of manufacturing cis-2,6-dimethylmorpholine

Details Method of manufacturing cis-2,6-dimethylmorpholine Method of manufacturing cis-2,6-dimethylmorpholine

1988-02-05

1988-10-18

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

C07D26528

Patent

active

047788860

ABSTRACT:
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.degree.-300.degree. C. and 1-500 bar absolute. The inexpensive novel catalyst enables conversions which are better than those with known methods.

REFERENCES:
patent: 3083202 (1963-03-01), Summers
patent: 4212972 (1980-07-01), Goetz et al.
Goetz, et al., Chemical Abstracts, vol. 102 (1985), No. 166763a.

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