Iridium‐Catalyzed Regio‐ and Enantioselective Borylation of Unbiased Methylene C(sp
<sup>3</sup>
)−H Bonds at the Position β to a Nitrogen Center
作者:Rongrong Du、Luhua Liu、Senmiao Xu
DOI:10.1002/anie.202016009
日期:2021.3.8
pyrazole‐directed iridium‐catalyzed enantioselective borylation of unbiased methylene C−H bonds at the position β to a nitrogen center. The combination of a chiral bidentate boryl ligand, iridium precursor, and pyrazole directing group was responsible for the high regio‐ and enantioselectivity observed. The method tolerated a vast array of functional groups to afford the corresponding C(sp3)−H functionalization
本文报道的是吡唑导向的铱催化的对位氮原子中心的无偏亚甲基CH键的对映选择性硼化。手性双齿硼基配体,铱前体和吡唑导向基团的结合是观察到的高区域选择性和对映选择性的原因。该方法耐受大量官能团,以提供具有良好至优异对映选择性的相应C(sp 3)-H功能化产物。