Aminophosphine Phosphinites Derived from Chiral 1,2-Diphenyl-2-aminoethanols: Synthesis and Application in Rhodium-Catalyzed Asymmetric Hydrogenation of Dehydroamino Acid Derivatives
作者:Rongliang Lou、Aiqiao Mi、Yaozhong Jiang、Yong Qin、Zhi Li、Fangmin Fu、Albert S.C Chan
DOI:10.1016/s0040-4020(00)00481-6
日期:2000.8
A series of chiral aminophosphine phosphinites DPAMPPs was synthesized from optically active 1,2-diphenyl-2-aminoethanols. The erythro-DPAMPPs were found to serve as excellent ligands for rhodium-catalyzed asymmetric hydrogenation of dehydroamino acid derivatives. For an array of dehydroamino acid precursors, remarkably high enantioselectivity (up to 98.4% e.e.) and reactivity (the ratio of substrate/catalyst
由旋光的1,2-二苯基-2-氨基乙醇合成了一系列手性氨基膦次膦酸酯DPAMPP。所述赤发现-DPAMPPs以作为脱氢氨基酸衍生物的铑催化的不对称氢化优异的配体。对于一系列脱氢氨基酸前体,观察到非常高的对映选择性(高达98.4%ee)和反应性(高达10000的底物/催化剂比例)。研究和讨论了控制对映选择性的一些因素。