Process for the production of aminoacid hydrochlorides/or diamin

Details Process for the production of aminoacid hydrochlorides/or diamin Process for the production of aminoacid hydrochlorides/or diamin

1979-12-17

1980-11-18

Trousof, Natalie

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

Organic compounds

Carboxylic acids and salts thereof

560157, 560158, 562553, 562561, 562575, 562576, C07C 9900

Patent

active

042347440

ABSTRACT:
Aminoacid hydrochlorides or diaminoacid dihydrochlorides are produced by first reacting a halocarboxylic acid ester with an alkali metal cyanate in the presence of an alcohol to form the corresponding mono- or diurethane and then saponifying this to the corresponding mono- or dihydrochloride. The new process is relatively versatile in its use and above all opens up an elegant synthesis route for lysine.

REFERENCES:
patent: 2647916 (1953-08-01), Kaiser
patent: 3526655 (1970-09-01), Argabright
patent: 3674750 (1972-07-01), Brady
patent: 4147716 (1979-04-01), Chung

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