Axially Dissymmetric Bis(aminophosphine)s Derived from 2,2′-Diamino-1,1′-binaphthyl. Synthesis and Application to Rhodium(I)-Catalyzed Asymmetric Hydrogenations
作者:Sotaro Miyano、Masayoshi Nawa、Akira Mori、Harukichi Hashimoto
DOI:10.1246/bcsj.57.2171
日期:1984.8
Axially dissymmetric bisphosphine ligands, (R)- and (S)-2,2′-bis(diphenylphosphinoamino)-1,1′-binaphthyl (BDPAB) and (R)-2,2′-bis[N-(diphenylphosphino)methylamino]-1,1′-binaphthyl (Me-BDPAB) were conveniently prepared from 2,2′-diamino-1,1′-binaphthyl. The rhodium(I)-catalyzed asymmetric hydrogenation of α-acylamidoacrylic acids and esters gave the corresponding amino acids of up to 95% optical purity
轴向不对称双膦配体,(R)-和(S)-2,2'-双(二苯基膦氨基)-1,1'-联萘(BDPAB)和(R)-2,2'-双[N-(二苯基膦)甲氨基]-1,1'-联萘 (Me-BDPAB) 可以方便地从 2,2'-二氨基-1,1'-联萘制备。铑 (I) 催化的 α-酰氨基丙烯酸和酯的不对称氢化得到光学纯度高达 95% 的相应氨基酸。在BDPAB和Me-BDPAB的两种情况下,产物氨基酸的中心手性的符号总是与配体的轴手性的符号相同。