Highly Efficient Nickel(II) Chloride/Bis(tricyclohexylphosphine)nickel(II) Chloride‐Cocatalyzed Hydrodefluorination of Fluoroarenes and Trifluorotoluenes with Superhydride

Abstract A simple and highly efficient approach for the hydrodefluorination of both fluoroarenes and trifluorotoluenes in the presence of lithium triethylborohydride using a catalytic amount of nickel(II) chloride (NiCl2, 2 mol%) combined with a catalytic amount of bis(tricyclohexylphosphine)nickel(II) chloride [NiCl2(PCy3)2, 2 mol%] as cocatalyst has been developed.