Method of racemizing optically active N-acylamino acids

Details Method of racemizing optically active N-acylamino acids Method of racemizing optically active N-acylamino acids

1975-03-03

1976-11-09

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602393R, 260309, 2603269, 260518R, 260518A, 260519, 260534R, 260534C, 260534E, 260534M, 260534G, 260534S, C07D20920, C07C10120, C07C10177, C07C10108

Patent

active

039910776

ABSTRACT:
Optically active amino acids N-acylated with carboxylic acids are readily racemized without decomposition at elevated temperature in inert organic solvents in which they are homogeneously soluble at the racemization temperature. When the deacylated amino acid is insoluble or only sparingly soluble in the solvent, the method permits a convenient work-up of the products of enzymatic deacylation of one enantiomorph of the N-acylamino acid in which the remaining enantiomorph is racemized for recycling to the deacylation step.

REFERENCES:
patent: 3458568 (1969-07-01), Ogasawara et al.
Kameda et al., "Chem. Abstracts," vol. 54 (1960), p. 20890f.
Greenstein et al., "Chemistry of the Amino Acids," vol. 3, (1961), pp. 1950-1951.

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