Photoredox-Mediated Minisci-type Alkylation of <i>N</i>-Heteroarenes with Alkanes with High Methylene Selectivity
作者:Guo-Xing Li、Xiafei Hu、Gang He、Gong Chen
DOI:10.1021/acscatal.8b04079
日期:2018.12.7
We report a highly efficient and chemoselective Minisci-type alkylation reaction of N-heteroarenes with alkanes under the reagent control of a hypervalent iodine oxidant PFBI-OH. In addition to the high reactivity, PFBI-OH demonstrated a high steric sensitivity for H abstraction of alkanes. This reaction is selective for more sterically accessible secondary C–H bonds over weaker tertiary C–H bonds
我们报告了在高价碘氧化剂PFBI-OH的试剂控制下,N-杂芳烃与烷烃的高效和化学选择性Minisci型烷基化反应。除具有高反应活性外,PFBI-OH还显示出对烷烃H提取的高空间敏感性。对于较立体的CH键较弱的C-H键而言,此反应具有较高的空间选择性。对于多种无环烷烃,观察到对倒数第二个亚甲基的高选择性。