发明名称 |
METHOD FOR PRODUCING (R)-4-CYANO-3-HYDROXYBUTYRIC ACID LOWER ALKYL ESTER |
摘要 |
PROBLEM TO BE SOLVED: To provide a method for efficiently producing the subject compound in high purity. SOLUTION: This method for producing a (R)-4-cyano-3-hydroxybutyric acid lower alkyl ester comprises the following process: the objective reaction product is extracted using an organic solvent from a reaction liquid after cyanation of the corresponding (S)-4-halogeno-3-hydroxybutyric acid lower alkyl ester followed by separation of the aqueous phase and the organic solvent phase; wherein, prior to the separation, the mixture of both the phases is filtered.
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申请公布号 |
JP2001122840(A) |
申请公布日期 |
2001.05.08 |
申请号 |
JP19990300389 |
申请日期 |
1999.10.22 |
申请人 |
MITSUBISHI CHEMICALS CORP |
发明人 |
MATSUDA HITOSHI;SHIBATA TOSHIHARU;TSUCHISADA HIDETAKA |
分类号 |
C07C253/34;C07C253/14;C07C255/20;(IPC1-7):C07C253/34 |
主分类号 |
C07C253/34 |
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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