Copper-Catalyzed Enantioselective Arylation via Radical-Mediated C–C Bond Cleavage: Synthesis of Chiral ω,ω-Diaryl Alkyl Nitriles
作者:Guo-Qing Cui、Jing-Cheng Dai、Yan Li、Yuan-Bo Li、Duo-Duo Hu、Kang-Jie Bian、Jie Sheng、Xi-Sheng Wang
DOI:10.1021/acs.orglett.1c02725
日期:2021.10.1
The first example of copper-catalyzed ring-opening, enantioselective arylation of cyclic ketoxime esters to access ω,ω-diaryl alkyl nitriles has been developed in high yield (up to 92% yield) with excellent enantioselectivity (up to 91% ee). Side-arm bis(oxazoline) ligand plays a significant role in this asymmetric catalytic transformation, which provides an efficient route to construct diverse chiral
铜催化开环、环状酮肟酯对映选择性芳基化获得 ω,ω-二芳基烷基腈的第一个例子已经以高产率(高达 92% 的产率)和优异的对映选择性(高达 91% ee)开发。侧臂双(恶唑啉)配体在这种不对称催化转化中发挥重要作用,为构建多种手性 ω,ω-二芳基烷基腈提供了有效途径。在 ω,ω-二芳基烷基腈进一步衍生为相应的酰胺中也证明了合成效用。