Synthesis of α-Aminophosphonates by Umpolung-Enabled Cu-Catalyzed Regioselective Hydroamination
作者:Shogo Nakamura、Soshi Nishino、Koji Hirano
DOI:10.1021/acs.joc.2c02632
日期:2023.1.20
A copper-catalyzed regioselective hydroamination of α,β-unsaturated phosphonates has been developed to form corresponding α-aminophosphonates of interest in medicinal chemistry. The introduction of an umpolung, electrophilic amination strategy with the hydroxylamine derivative is the key to achieving the α-amination regioselectivity, which is otherwise difficult under the conventional nucleophilic
已经开发了铜催化的 α,β-不饱和膦酸酯的区域选择性加氢胺化,以形成药物化学中感兴趣的相应 α-氨基膦酸酯。使用羟胺衍生物引入 umpolung 亲电胺化策略是实现 α-胺化区域选择性的关键,否则这在使用母胺的常规亲核加氢胺化条件下很难实现。还描述了使用手性双膦配体的不对称合成以及在相关甲硅烷基化反应中的应用。