Arylation, Alkenylation, and Alkylation of 2-Halopyridine <i>N</i>-Oxides with Grignard Reagents: A Solution to the Problem of C2/C6 Regioselective Functionalization of Pyridine Derivatives
作者:Song Zhang、Lian-Yan Liao、Fang Zhang、Xin-Fang Duan
DOI:10.1021/jo302511s
日期:2013.3.15
alkenylation, and alkylation of functionalized 2-halopyridine N-oxides with various Grignard reagents was developed. It represented a highly efficient and selective C–H bond functionalization of pyridine derivatives in the presence of reactive C–Cl or C–Br bonds. Using Cl or Br as a blocking group, C2/C6 site-controllable functionalization of pyridine derivatives has been achieved. Various pyridine compounds
开发了各种格氏试剂的简便芳基化,烯基化和烷基化的功能化的2-卤代吡啶N-氧化物。它代表了在存在反应性C–Cl或C–Br键的情况下吡啶衍生物的高效C–H键选择性官能化。使用Cl或Br作为封闭基团,已经实现了吡啶衍生物的C2 / C6位点可控的官能化。如Onychine,dielsine和PARP-1抑制剂GPI 16539的总合成所示,可以制备各种吡啶化合物。