Rhodium-catalyzed asymmetric hydrogenation with aminophosphine ligands derived from 1,1′-binaphthyl-2,2′-diamine
作者:Rongwei Guo、Xingshu Li、Jing Wu、Wai Him Kwok、Jian Chen、Michael C.K Choi、Albert S.C Chan
DOI:10.1016/s0040-4039(02)01510-1
日期:2002.9
Chiral ligands 2,2′-bis(dicyclohexylphosphinoamino)-1,1′-binaphthyl and 2,2′-bis[bis(3,5-dimethylphenyl)phosphinoamino]-1,1′-binaphthyl were synthesized by reacting 1,1′-binaphthyl-2,2′-diamine with dicyclohexylchlorophosphine and bis(3,5-dimethylphenyl)chlorophosphine, respectively. Application of these ligands to the Rh-catalyzed asymmetric hydrogenation of a variety of amidoacrylic acids and esters
通过1,1反应合成手性配体2,2'-双(二环己基膦氨基)-1,1'-联萘基和2,2'-双[双(3,5-二甲基苯基)膦氨基] -1,1'-联萘基′-联萘-2,2′-二胺分别与二环己基氯膦和双(3,5-二甲基苯基)氯膦。这些配体在Rh催化的各种酰胺基丙烯酸和酯的不对称加氢中的应用提供了具有出色对映选择性(高达99%ee和定量收率)的手性氨基酸衍生物。