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Jingjing Wu and Prof. Song Cao Nickel-Catalyzed Hydrodefluorination of Fluoroarenes and Trifluorotoluenes with Superhydride (Lithium Triethylborohydride) ChemCatChem 3

Version of Record online: 22 JUN 2011 | DOI: 10.1002/cctc.201100083

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Superkiller of C[BOND]F bonds: Two new LiEt3BH/Ni-based catalyst systems for the hydrodefluorination (HDF) of fluoroarenes and trifluorotoluenes were reported. Both fluoroarenes and trifluorotoluenes were reduced to the corresponding arenes and toluenes in excellent yields with LiEt3BH in the presence of 40 % NiCl2, whereas a catalytic amount of NiCl2(PCy3)2 (typically 5 mol %) along with LiEt3BH exhibited high activity and selectivity in the HDF of fluoroarenes and was inert to trifluorotoluenes.

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