发明名称 |
Process for Improving Enantiomeric Purity of Aldehydes |
摘要 |
<p>This invention relates to a process for producing an optically active aldehyde (first aldehyde) containing a reduced amount of the corresponding enantiomeric aldehyde (second aldehyde) which process comprises: (1) providing an initial solution containing a non-eutectic mixture of the first aldehyde and the second aldehyde, which mixture has a composition in the compositional region where only the first aldehyde crystallizes when its solubility limit in the solution is exceeded, and (2) maintaining the solution at a temperature above the eutectic temperature of the mixture and under conditions such that the solubility limit of the first aldehyde is exceeded so as to form a crystalline first aldehyde containing relatively less of the second aldehyde than was present in the initial solution.</p> |
申请公布号 |
CA2193959(A1) |
申请公布日期 |
1996.01.04 |
申请号 |
CA19952193959 |
申请日期 |
1995.06.23 |
申请人 |
UNION CARBIDE CHEMICALS & PLASTIC TECHNOLOGY CORPORATION |
发明人 |
BARNER, BRUCE A.;BRIGGS, JOHN R.;KURLAND, JONATHAN J.;MOYERS, CHARLES G. |
分类号 |
C07C45/50;C07C45/67;C07C45/72;C07C45/78;C07C45/81;C07C51/487;(IPC1-7):C07C47/20;C07C49/86;C07D209/46;C07D333/22;C07D487/04 |
主分类号 |
C07C45/50 |
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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