Au-Catalyzed Cross-Coupling of Arenes via Double C-H Activation
The first methodology for Au(I/III)-catalyzed oxidative cross-coupling of arenes via double C-H activation has been developed. The reaction is fully selective for the cross-coupling between electron-rich hetero-/carbocyclic arenes and electron-poor arenes bearing relatively acidic C-H bonds. The inherently high cross-selectivity of the system obviates the need for directing groups or a large excess of one of the coupling partners.
Cambeiro, Xacobe C.,Ahlsten, Nanna,Larrosa, Igor
supporting information
p. 15636 - 15639
(2016/01/09)
Cross-coupling of arene-gold(III) complexes
The reactivity of electron-deficient arene-gold(III) complexes toward nucleophilic aromatic and heteroaromatic counterparts has been studied. 1-Methylindole proved to be the best reaction partner while trimethoxybenzenes did not react. The ancillary ligand on gold also influenced the reactivity in the order PPh3>PtBu3>IPr. An oxidative cross-coupling starting from the corresponding gold(I) complexes in presence of hypervalent iodide oxidants was also studied.
Hofer, Manuel,Nevado, Cristina
p. 5751 - 5757
(2013/07/11)
Palladium-catalyzed aerobic dehydrogenative cross-coupling of polyfluoroarenes with thiophenes: Facile access to polyfluoroarene-thiophene structure
We report a Pd-catalyzed aerobic dehydrogenative cross-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 mo
He, Chun-Yang,Min, Qiao-Qiao,Zhang, Xingang
experimental part
p. 1335 - 1340
(2012/04/10)
Pd-catalyzed oxidative cross-coupling of perfluoroarenes with aromatic heterocycles
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.
He, Chun-Yang,Fan, Shilu,Zhang, Xingang
supporting information; experimental part
p. 12850 - 12852
(2010/11/05)
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