Methionine process

Details Methionine process Methionine process

1979-10-01

1981-03-31

Niebling, John F.

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

Organic compounds

Carboxylic acids and salts thereof

C07C149247

Patent

active

042595258

ABSTRACT:
Methionine is prepared from 5-(beta-methylmercaptoethyl)-hydantoin at atmospheric pressure by refluxing the hydantoin with a metal hydroxide such as sodium hydroxide, potassium hydroxide, or barium hydroxide and an alkanol having a boiling point of from about 125.degree. C. to about 230.degree. C. at atmospheric pressure, preferably, a water saturated alkanol having a boiling point of from about 125.degree. C. to about 230.degree. C. at atmospheric pressure and thereafter recovering methionine.

REFERENCES:
patent: 2527366 (1950-10-01), Livak et al.
patent: 2557913 (1951-06-01), Livak et al.
patent: 3636098 (1972-01-01), Shima et al.
patent: 3668221 (1972-06-01), Shima et al.
Pierson et al. Jour. Am. Chem. Soc. 70 1450 (1948).

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