Method for extracting an amino acid ester from a hydrous solutio

Details Method for extracting an amino acid ester from a hydrous solutio Method for extracting an amino acid ester from a hydrous solutio

1993-01-19

1994-12-20

Cintins, Marianne M.

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

Organic compounds

Carboxylic acid esters

560 39, 560153, 560169, 560171, 562 38, C07C70900

Patent

active

053747658

ABSTRACT:
Disclosed is a method for extracting an amino acid ester from a hydrous solution which comprises adding thereto a water-insoluble organic solvent and then an amount of a base effective to liberate only a portion of the amino acid ester in free base form, and transferring the thus liberated amino acid ester in the free base form into the organic layer, and repeating the neutralization-extraction steps until all of the amino acid ester has been extracted.

REFERENCES:
patent: 3988341 (1976-10-01), Saari et al.
patent: 4680403 (1987-07-01), Hisamiatsu et al.
Vidaluc et al. "Optimization of the enzymatic synthesis of amino and esters" Tetrahedron vol. 39(2), pp. 269-274, 1983.

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