Cyclic acetals of glutamic acid-.gamma.-semialdehyde, process fo

Details Cyclic acetals of glutamic acid-.gamma.-semialdehyde, process fo Cyclic acetals of glutamic acid-.gamma.-semialdehyde, process fo

1981-11-10

1983-03-15

Raymond, Richard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549451, C07D31730, C07D31906

Patent

active

043768644

ABSTRACT:
The invention is directed to cyclic acetals of glutamic acid-.gamma.-semialdehyde of the formula ##STR1## in which A is an unsubstituted alkylene group having 2 to 3 carbon atoms or such an alkylene group substituted by 1 to 2 methyl groups and to a method of producing a compound of formula (I) by reaction of a compound of the general formula ##STR2## in which A is as defined above with hydrogen cyanide or a cyanide ion supplying compound, ammonia or an ammonium ion supplying compound and carbon dioxide or a carbonate ion supplying compound and basic hydrolysis of the reaction mixture obtained and to using the compound of formula (I) to produce D,L-proline.

REFERENCES:
patent: 2500155 (1950-03-01), Croxall et al.

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