发明名称 |
PROCESS FOR THE PREPARATION OF A STARTING MATERIAL FOR THE PRODUCTION OF PHENYLALANINE |
摘要 |
A precursor of phenylalanine containing as a major component 5-benzylhydantoin is prepared by reacting, in an aqueous medium, a bisulfite addition salt of phenylacetaldehyde with cyanide and carbonate ions, each being in a molar ratio of equimol or more to said bisulfite addition salt and ammonium ion in a molar ratio of 2 or more to said carbonate ion. The thus prepared precursor of phenylalanine may be converted into phenylalanine by a hydrolysis under a basic or acidic condition. |
申请公布号 |
DE3378156(D1) |
申请公布日期 |
1988.11.10 |
申请号 |
DE19833378156 |
申请日期 |
1983.11.18 |
申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
AYABE, MITSUKUNI;SHIMIZUI, TSUNEHIKO;KIBAYASHI, IWAO;HIRANO, HIDEKI |
分类号 |
C07D233/74;(IPC1-7):C07D233/74 |
主分类号 |
C07D233/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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