| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a high-purity alkali metal salt ofβ-alanine-N,N-diacetic acid in high yield by using, as a starting raw material, 3-aminopropionitrile instead of iminodiacetic acid andβ-alanine used in a conventional method. SOLUTION: The alkali metal salt ofβ-alanine-N,N-diacetic acid is obtained by reacting prussic acid and formaldehyde, or glicolonitrile, with 3-aminopropionitrile in the presence of an alkali metal hydroxide. Orβ-alanine-N,N-diacetic acid and its salt are produced by reacting prussic acid and formaldehyde, or glicolonitrile, with 3-aminopropionitrile in the presence of an alkali metal hydroxide and hydrolyzing the obtained. COPYRIGHT: (C)2005,JPO&NCIPI
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