Homogeneous Hydrogenation of Substituted (z) - ene-1,2-dicarbamates with rh(i) phosphine complexes
摘要:
Homogeneous hydrogenation of substituted (Z)-ene-1,2-di-(-)-(1R, 3R, 4S)-menthylcarbamate catalysed by rhodium complexes containing (+)-(2S.3S) or (-)-(2R,3R)-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane (DIOP) gives rise to the saturated products with a diastereomeric excess (de) of 47% and 40%. respectively. Hydrogenation of substituted (Z)-ene-1,2-di-iso-butylcarbamate affords an enantiomeric excess (ee) of 20% and 18%.
Homogeneous Hydrogenation of Substituted (z) - ene-1,2-dicarbamates with rh(i) phosphine complexes
摘要:
Homogeneous hydrogenation of substituted (Z)-ene-1,2-di-(-)-(1R, 3R, 4S)-menthylcarbamate catalysed by rhodium complexes containing (+)-(2S.3S) or (-)-(2R,3R)-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane (DIOP) gives rise to the saturated products with a diastereomeric excess (de) of 47% and 40%. respectively. Hydrogenation of substituted (Z)-ene-1,2-di-iso-butylcarbamate affords an enantiomeric excess (ee) of 20% and 18%.
Homogeneous Hydrogenation of Substituted (z) - ene-1,2-dicarbamates with rh(i) phosphine complexes
作者:Janina Altman、Dov Ben-Ishai、Evelina Berkovich
DOI:10.1016/s0040-4020(01)86330-4
日期:1993.3
Homogeneous hydrogenation of substituted (Z)-ene-1,2-di-(-)-(1R, 3R, 4S)-menthylcarbamate catalysed by rhodium complexes containing (+)-(2S.3S) or (-)-(2R,3R)-isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane (DIOP) gives rise to the saturated products with a diastereomeric excess (de) of 47% and 40%. respectively. Hydrogenation of substituted (Z)-ene-1,2-di-iso-butylcarbamate affords an enantiomeric excess (ee) of 20% and 18%.