Chiral 1,2,3,4-Tetrahydro-1-naphthylamine-Derived Phosphine-Phosphoramidite Ligand (THNAPhos): Application in Highly Enantioselective Hydrogenations of Functionalized CC Bonds
作者:Min Qiu、Xiang-Ping Hu、Dao-Yong Wang、Jun Deng、Jia-Di Huang、Sai-Bo Yu、Zheng-Chao Duan、Zhuo Zheng
DOI:10.1002/adsc.200800152
日期:2008.6.9
reported a new chiral 1,2,3,4-tetrahydro-1-naphthylamine-derived phosphine-phosphoramidite ligand, (Rc,Ra)-THNAPhos, that is highly efficient in the rhodium-catalyzed asymmetric hydrogenation of a broad range of α-enol ester phosphonates. To further demonstrate the utility of THNAPhos in asymmetric hydrogenation, in this paper, we describe its new application in the asymmetric hydrogenation of α-dehydroamino
我们最近报道了一种新的手性1,2,3,4-四氢-1-萘胺衍生的膦-亚磷酰胺配体(R c,R a)-THNAPhos,在铑催化的aa的不对称加氢中非常有效范围广泛的α-烯醇酯膦酸酯。为了进一步证明THNAPhos在不对称氢化中的效用,在本文中,我们描述了其在α-脱氢氨基酸酯,酰胺,衣康酸二甲酯和α-烯酰胺膦酸酯的不对称氢化中的新应用。结果表明,Rh /(R c,R a)-THNAPhos络合物对于这些类型的功能化CC烯烃的对映选择性氢化非常有效,从而以优异的对映选择性(通常超过99%ee)提供相应的氢化产物。