VERFHREN ZUR VERBESSERUNG DER ENANTIOMERISCHER REINHEIT VON ALDEHYDEN
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
DE69526345(T2)
申请公布日期
2002.08.08
申请号
DE1995626345T
申请日期
1995.06.23
申请人
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORP., DANBURY;BARNER, BRUCE ARMIN;BRIGGS, JOHN ROBERT;KURLAND, JONATHAN JOSHUA;MOYERS JUN., CHARLES GUTHRIE