Photocatalytic enantioselective Minisci reaction of β-carbolines and application to natural product synthesis
作者:Mu-Peng Luo、Yi-Jie Gu、Shou-Guo Wang
DOI:10.1039/d2sc05313f
日期:——
A highly efficient enantioselective direct C–H functionalization of β-carbolines via a Minisci-type radical process under a photo-redox and chiral phosphoric acid cooperative catalytic system has been disclosed. Through this protocol, a wide range of C1 aminoalkylated β-carbolines were constructed directly with high levels of enantioselectivities from readily available β-carbolines and alanine-derived
β-咔啉的高效对映选择性直接 C-H 官能化已经公开了在光氧化还原和手性磷酸协同催化体系下的Minisci型自由基过程。通过该协议,从现成的 β-咔啉和丙氨酸衍生的氧化还原活性酯中直接构建了具有高水平对映选择性的各种 C1 氨基烷基化 β-咔啉。这种转化可以直接获得非常有价值的富含对映体的 β-咔啉,这是有价值的天然产物和合成生物活性化合物中一个有趣的结构基序。该协议已被用作海洋生物碱 eudistomin X、(+)-eudistomidin B 和 (+)-eudistomidin I 的简洁不对称全合成的高效合成策略。