Highly Efficient Rhodium/Monodentate Phosphoramidite Catalyst and Its Application in the Enantioselective Hydrogenation of Enamides and α-Dehydroamino Acid Derivatives
作者:Xian Jia、Xingshu Li、Lijin Xu、Qian Shi、Xinsheng Yao、Albert S. C. Chan
DOI:10.1021/jo026869c
日期:2003.5.1
derived from BINOL, (S)-2,2'-O,O-(1,1'-binaphthyl)-dioxo-N,N-diethylphospholidine, was examined in the hydrogenation of both enamides and alpha-dehydroamino acid derivatives. The catalyst provided remarkably high enantioselectivities (up to 99.6% ee for enamides and >99.9% ee for alpha-dehydroamino acid derivatives).
考察了由BINOL衍生的易于制备且高效的单齿亚磷酰胺配体,(S)-2,2'-O,O-(1,1'-联萘基)-二氧代-N,N-二乙基膦ol酰胺和α-脱氢氨基酸衍生物。该催化剂提供了极高的对映选择性(对酰胺而言,高达99.6%ee,对α-脱氢氨基酸衍生物而言,高达> 99.9%ee)。