Rhodium or Ruthenium-Catalyzed Oxidative CH/CH Cross-Coupling: Direct Access to Extended π-Conjugated Systems
作者:Jiaxing Dong、Zhen Long、Feijie Song、Ningjie Wu、Qiang Guo、Jingbo Lan、Jingsong You
DOI:10.1002/anie.201207196
日期:2013.1.7
Doubling up: A chemo‐ and regioselective oxidative cross‐coupling between various N‐heteroarene‐containing arenes and heteroarenes has been carried out by rhodium‐ or ruthenium‐catalyzed twofold CH activation, to deliver an array of highly functionalized π‐conjugated systems.
straightforward and efficient method for the rhodium-catalyzed intermolecular oxidativecross-coupling of arenes and heteroarenes with thio- and selenophene derivatives (chalcogenophenes) via double C–H bond cleavage has been developed by using Cu(OAc)2/AgSbF6 as an oxidant. The reaction is applicable to a wide range of (hetero)arenes carrying a directing group and chalcogenophenes to yield substituted biaryl