作者:Hong-Hao Yan、Feng Sha、Xin-Yan Wu
DOI:10.1016/j.tetlet.2023.154364
日期:2023.3
described a new catalytic system for copper-catalyzed asymmetric conjugate hydroboration of α,β-unsaturated amides. Under the optimal conditions, the reactions proceeded smoothly to afford the corresponding chiral β-hydroxyl amides with up to 96% yield and 84% ee by employing chiral N,P-ligand. The reaction conditions are mild, the operation is simple, and it has good substrate generality.
手性硼酸盐可以进行各种具有高度立体特异性的转化,因此它们在不对称合成中具有重要意义。在此我们描述了一种新的催化体系,用于铜催化的 α,β-不饱和酰胺的不对称共轭硼氢化反应。在最佳条件下,反应顺利进行,通过使用手性 N,P-配体得到相应的手性 β-羟基酰胺,产率高达 96%,ee 率为 84%。反应条件温和,操作简单,底物通用性好。