Synthesis of α‐Quaternary β‐Lactams via Copper‐Catalyzed Enantioconvergent Radical C(sp
<sup>3</sup>
)−C(sp
<sup>2</sup>
) Cross‐Coupling with Organoboronate Esters
作者:Fu‐Li Wang、Lin Liu、Chang‐Jiang Yang、Cheng Luan、Jing Yang、Ji‐Jun Chen、Qiang‐Shuai Gu、Zhong‐Liang Li、Xin‐Yuan Liu
DOI:10.1002/anie.202214709
日期:2023.1.9
Copper-catalyzed enantioconvergent radical C(sp3)−C(sp2) cross-coupling of tertiary alkyl bromides with organoboronate esters is developed to access synthetically valuable α-quaternary chiral β-lactams. The success of this work relies on the utilization of chiral N,N,N-ligands to forge the sterically congested C(sp3)−C(sp2) bonds.
开发了铜催化的对映收敛自由基 C(sp 3 )−C(sp 2 ) 叔烷基溴与有机硼酸酯的交叉偶联,以获得具有合成价值的 α-季手性 β-内酰胺。这项工作的成功依赖于利用手性 N,N,N-配体来形成空间拥挤的 C(sp 3 )−C(sp 2 ) 键。