| 发明名称 |
Method for producing (R)-4-cyano-3-hydroxybutyric acid lower alkyl ester |
| 摘要 |
Crude (R)-4-cyano-3-hydroxybutyric acid lower alkyl ester, obtained by subjecting an (S)-4-halogeno-3-hydroxybutyric acid lower alkyl ester to a cyano-introducing reaction, is purified by distillation carried out in the presence of a solvent having a boiling point within the range of 50 DEG C. to 160 DEG C. at 10 Torr.
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| 申请公布号 |
US5908953(A) |
申请公布日期 |
1999.06.01 |
| 申请号 |
US19970988099 |
申请日期 |
1997.12.10 |
| 申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
MATSUDA, HITOSHI;SHIBATA, TOSHIHARU;HASHIMOTO, HIDEKICHI;KITAI, MITSUMASA |
| 分类号 |
C07C253/14;C07C253/34;C07C255/20;(IPC1-7):C07C255/10;C07C253/12 |
主分类号 |
C07C253/14 |
| 代理机构 |
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| 主权项 |
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