ASYMMETRISCHE HYDRIERUNG VON FUROIMIDAZOL-DERIVATE
摘要
<p>A process for the asymmetric hydrogenation of furoimidazole derivatives of the general formula: <IMAGE> I with hydrogen in the presence of a homogeneous catalyst to give the corresponding diastereomeric dihydrofuroimidazole derivatives of the general formula: <IMAGE> II R1 and R2 are protective groups, although R2 can be hydrogen. The dihydrofuroimidazole derivatives of the general formula II are intermediates for the preparation of (+)-biotin.</p>
申请公布号
DE69400267(T2)
申请公布日期
1996.10.31
申请号
DE1994600267T
申请日期
1994.04.19
申请人
LONZA LTD., GAMPEL, VALAIS, CH
发明人
EYER, MARTIN, CH-3902 BRIG-GLIS, CH;MERRILL, RONALD, E., TORRANCE, CA 90502, US