| 发明名称 |
Enrichment of optical purity of 2-(4-aryloxyphenoxy) propionic acids by crystallization as hydrates. |
| 摘要 |
<p>The present invention concerns a process for enrighing the optical purity of an optically active 2-(4-aryloxyphenoxy)propionic acid by formation of the hydrate of the enantiomer in excess and its removal from solution.</p> |
| 申请公布号 |
EP0350038(A2) |
申请公布日期 |
1990.01.10 |
| 申请号 |
EP19890112375 |
申请日期 |
1989.07.06 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
KERSHNER, LARRY D.;TAI, JIMMY J. |
| 分类号 |
C07D241/44;C07B57/00;C07C51/487;C07C59/68;C07C253/30;C07C255/54;C07D213/63;C07D213/64;C07D213/643;C07D263/58 |
主分类号 |
C07D241/44 |
| 代理机构 |
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代理人 |
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| 地址 |
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