Production of DL-serine by heating a strong acid type cation exchange resin having aziridine-2-carboxylic acid adsorbed thereto. Specifically, an industrial process for producing DL-serine is provided which comprises treating an a-halogeno-o-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.
Process for producing solutions of aziridine-2-carboxylic acid salt
申请人:MITSUI TOATSU CHEMICALS, Inc.
公开号:EP0030870A1
公开(公告)日:1981-06-24
A process for producing an aziridine-2-carboxylic acid salt is provided which comprises treating an alpha-halogeno-beta-aminopropionic acid, its ester or a mineral acid salt of said acid or ester with an alkali metal hydroxide, an alkaline earth metal hydroxide or aqueous ammonia in water or a water-containing organic solvent.