Nickel-Catalyzed Enantioselective Hydrogenation of β-(Acylamino)acrylates: Synthesis of Chiral β-Amino Acid Derivatives
作者:Xiuxiu Li、Cai You、Shuailong Li、Hui Lv、Xumu Zhang
DOI:10.1021/acs.orglett.7b02417
日期:2017.10.6
β-(acylamino)acrylates has been developed, affording chiral β-amino acid derivatives with excellent yields (95–99% yield) and enantioselectivities (97–99% ee). With the Ni–Binapine system, high enantioselectivities (98–99% ee) have also been obtained in the hydrogenation of Z/E isomeric mixtures of β-alkyl and β-aryl β-(acylamino)acrylates. The synthesis of chiral β-amino acid derivatives on a gram scale has also
已经开发了镍催化的β-(酰基氨基)丙烯酸酯不对称氢化反应,提供了具有优异收率(95-99%收率)和对映选择性(97-99%ee)的手性β-氨基酸衍生物。使用Ni-Binapine系统,在氢化β-烷基和β-芳基β-(酰基氨基)丙烯酸酯的Z / E异构体混合物时,也获得了高对映选择性(98-99%ee)。在催化剂量为0.2mol%的情况下,也已经完成了克级的手性β-氨基酸衍生物的合成。