monodentate phosphoramidite ligands have been developed that lead to excellent ee's and full conversions in the hydrogenation of (E)- and (Z)-beta-dehydroamino acid derivatives with both aliphatic and aromatic side chains. Particularly, two different catalytic systems were established for (E)-beta-(acylamino)acrylates (98-99% ee) and (Z)-beta-(acylamino)acrylates (92-95% ee) based on phosphoramidites
已开发出新的且非常容易获得的单齿亚
磷酰胺
配体,其在具有脂肪族和芳香族侧链的 (E)- 和 (Z)-β-脱氢
氨基酸衍
生物的氢化中产生出色的 ee 和完全转化。特别是,基于亚
磷酰胺 2 和 3,为 (E)-β-(酰
氨基)
丙烯酸酯 (98-99% ee) 和 (Z)-β-(酰
氨基)
丙烯酸酯 (92-95% ee) 建立了两种不同的催化体系, 分别。