Process for producing DL-phenylalanine

Details Process for producing DL-phenylalanine Process for producing DL-phenylalanine

1986-04-23

1987-11-03

Reamer, James H.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 9900

Patent

active

047044713

ABSTRACT:
A process for producing DL-phenylalanine by reacting an .alpha.-halogeno-.beta.-phenylpropionic acid represented by the general formula: ##STR1## where X is a halogen atom, or its salt, with ammonia, characterized in that the reaction is conducted while supplying the .alpha.-halogeno-.beta.-phenylpropionic acid or its salt into aqueous ammonia charged in a reactor in advance.

REFERENCES:
patent: 2109929 (1938-03-01), Rigby
patent: 3642887 (1972-02-01), Jackisch
Cheronis et al., J. Org. Chem., vol. 6, pp. 349-375 (1941).
Chadwick et al., J.A.C.S., vol. 63, pp. 2427-2431 (1941).
Zhur. Obshcei Khim. 28, pp. 227-230 (1958).
Proc. Chem. Soc. (Mar. 1962), pp. 117-118.
Chem. Abstracts, vol. 52, No. 15, 8/10/85, A. M. Yurkevich et al., col. 12797, Abstract No. 12797-e-h & Zhur. Obshchei Khim. 28, pp. 227-230 (1958).
Chem. Abstracts, vol. 60, No. 12, 6/12/64, R. Filler et al., col. 14347, Abstract No. 14347e-g & Proc. Chem. Soc. (Mar. 1962), pp. 117-118.

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