Enantioselective metallaphotoredox catalysis, which combines photoredox catalysis and asymmetric transition-metal catalysis, has become an effective approach to achieve stereoconvergence under mild conditions. Although many impressive synthetic approaches have been developed to access central chirality, the construction of axial chirality by metallaphotoredox catalysis still remains underexplored. Herein
结合了光氧化还原催化和不对称过渡金属催化的对映选择性金属光氧化还原催化已成为在温和条件下实现立体收敛的有效途径。尽管已经开发了许多令人印象深刻的合成方法来获得中心手性,但通过金属光氧化还原催化构建轴向手性仍未得到充分探索。在此,我们报告了两种可见光诱导的钴催化的联芳基二醛不对称还原偶联合成轴向手性醛(60 个例子,高达 98% 的产率,>19:1 dr 和 >99% ee)。该方案显示出良好的官能团耐受性、广泛的底物范围以及出色的非对映和对映选择性。