Palladium-Catalyzed Aerobic Dehydrogenative Cross-Coupling of Polyfluoroarenes with Thiophenes: Facile Access to Polyfluoroarene–Thiophene Structure
作者:Chun-Yang He、Qiao-Qiao Min、Xingang Zhang
DOI:10.1021/om200873j
日期:2012.2.27
We report a Pd-catalyzed aerobic dehydrogenativecross-coupling of polyfluoroarenes with thiophenes via 2-fold C–H functionalization. The advantages of this reaction are its high reaction efficiency, excellent functional group compatibility, and use of molecular O2 as terminal oxidant. This reaction provides a useful and facile protocol for the preparation of polyfluoroarene–thiophene structure of
Pd-Catalyzed Oxidative Cross-Coupling of Perfluoroarenes with Aromatic Heterocycles
作者:Chun-Yang He、Shilu Fan、Xingang Zhang
DOI:10.1021/ja106046p
日期:2010.9.22
A straightforward and practical method for direct Pd(OAc)(2)-catalyzed oxidative cross-coupling of electron-deficient perfluoroarenes with aromatic heterocycles has been developed. Because of its low catalyst loading (2.5 mol %), high reaction efficiency, good chemo- and regioselectivity, and excellent functional-group compatibility, this protocol provides a useful and operationally simple access to perfluoroarene thiophene structures of interest in functional materials for electronic devices.
Copper- and Phosphine-Ligand-Free Palladium-Catalyzed Direct Allylation of Electron-Deficient Polyfluoroarenes with Allylic Chlorides
作者:Yan-Bo Yu、Shilu Fan、Xingang Zhang
DOI:10.1002/chem.201202824
日期:2012.11.12
copper‐ and phosphine‐ligand‐free Pd‐catalyzed directallylation of electron‐deficient polyfluoroarenes with allylicchlorides and the reaction mechanism are described (see scheme). The simple catalytic system, broad substrate scope, and excellent functional‐group compatibility of this protocol provides a useful and facile access to allylated polyfluoroarenes.