Elements of Regiocontrol in the Direct Heteroarylation of Indoles/Pyrroles: Synthesis of Bi- and Fused Polycyclic Heteroarenes by Twofold or Tandem Fourfold CH Activation
作者:Zhen Wang、Feijie Song、Yinsong Zhao、Yumin Huang、Lei Yang、Dongbing Zhao、Jingbo Lan、Jingsong You
DOI:10.1002/chem.201203004
日期:2012.12.21
strategies effectively switch the C2/C3‐site selectivity in the heteroarylation of indoles and pyrroles with N‐heteroarenes by a palladium‐catalyzed twofold CHactivation to form biheteroarenes and are further extended to the synthesis of complex fused tri‐ and tetracyclic heteroarenes by a tandem fourfold CHactivation (see scheme).