Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1980-12-02
1981-12-08
Trousof, Natalie
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
260239AA, C07C10130
Patent
active
043049338
ABSTRACT:
Production of DL-serine by heating a strong acid type cation exchange resin having aziridine-2-carboxylic acid absorbed thereto. Specifically, an industrial process for producing DL-serine is provided which comprises treating an alpha-halogeno-beta-aminopropionitrile or its mineral acid salt in water or a water-containing organic solvent with an alkali or alkaline earth metal hydroxide to form an alkali or alkaline earth metal aziridine-2-carboxylate, treating the reaction mixture with a strong acid type cation exchange resin to cause adsorption of aziridine-2-carboxylic acid, and thereafter heating the cation-exchange resin.
REFERENCES:
Berse, Con. J. Chem., 49, p. 2610-2611 (1971).
Gundermann et al., Chem. Ber., vol. 93, pp. 1632-1633, 1634-1635, 1638-1641 (1960).
Kyburz, E., Hev. Chim. Acta, vol. 49, pp. 364-365 and 366-367, 359 and 368 (1966).
Higuchi Chojiro
Kato Toshio
Kawashima Nobuyuki
Mita Ryuichi
Nagai Shosuke
Mitsui Toatsu Chemicals Inc.
Shippa Michael L.
Trousof Natalie
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