Synthesis of β-Silyl-α-amino Acid Derivatives by Cu-Catalyzed Regio- and Enantioselective Silylamination of α,β-Unsaturated Esters
作者:Toshimichi Kobayashi、Soshi Nishino、Masahiro Miura、Koji Hirano
DOI:10.1021/acs.orglett.2c00309
日期:2022.2.18
silylamination of α,β-unsaturated esters with silylboranes and hydroxylamines has been developed to afford the corresponding β-silyl-α-amino acid derivatives, which are of great interest in medicinal and pharmaceutical chemistry. Additionally, by using a suitable chiral bisphosphine ligand, the asymmetric induction is possible, delivering the optically active β-silyl-α-amino acids with synthetically
已开发出铜催化的 α,β-不饱和酯与甲硅烷基硼烷和羟胺的甲硅烷基化反应,得到相应的 β-甲硅烷基-α-氨基酸衍生物,这在药物和药物化学中具有重要意义。此外,通过使用合适的手性双膦配体,不对称诱导是可能的,以合成可接受的非对映体比 (55:45–82:18 dr) 和高对映体比 (81: 19–99:1 呃)。