Preparation of alkyl morpholinones

Details Preparation of alkyl morpholinones Preparation of alkyl morpholinones

1990-10-12

1991-11-19

Ramsuer, Robert W.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D26532

Patent

active

050668048

ABSTRACT:
A 4-alkyl-2-morpholinone is prepared by reacting glyoxal with a C.sub.1 -C.sub.18 N-alkylmonoethanolamine in solution in a solvent that azeotropes with water at a temperature of about -10.degree. to 20.degree. C. for about 1 to 5 hours and by then heating the reaction mixture to a temperature of at least about 110.degree. C. to remove an azeotrope of water and solvent from the mixture to thereby substantially selectively convert the C.sub.1 -C.sub.18 N-alkylmonoethanolamine to the corresponding 4-alkyl-2-morpholinone.

REFERENCES:
Laurent et al., Bull. Soc. Chim. Fr., 83 (1978) II, pp. 83-88.

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