A Versatile Route tosyn- andanti-α-Aminoβ-Hydroxy Esters fromβ-Keto Esters by Dynamic Kinetic Resolution with Ru-SYNPHOS® Catalyst
作者:Céline Mordant、Pascal Dünkelmann、Virginie Ratovelomanana-Vidal、Jean-Pierre Genet
DOI:10.1002/ejoc.200400078
日期:2004.7
anti-α-amino β-hydroxy esters with high levels of selectivity by the use of Ru-SYNPHOS® catalysts is reported. The key transformations include asymmetric hydrogenations of α-N-substituted β-keto esters protected as α-amido or α-amino hydrochloride derivatives, respectively. The RuII-catalyzed hydrogenation of α-amino β-keto ester hydrochlorides affords the corresponding anti-α-amino β-hydroxy esters with high
报道了使用 Ru-SYNPHOS® 催化剂以高水平选择性合成顺-和反-α-氨基β-羟基酯的通用和实用合成方法。关键的转化包括分别保护为 α-酰胺或 α-氨基盐酸盐衍生物的 α-N-取代的 β-酮酯的不对称氢化。RuII 催化的 α-氨基 β-酮酯盐酸盐氢化反应通过动态动力学拆分 (DKR) 得到相应的具有高非对映选择性(高达 99%)和对映选择性(高达 97%)的抗α-氨基 β-羟基酯. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)