Persistent radical cation solutions from the reaction between aromatics and bromine, chlorine or iodine chloride in 1,1,1,3,3,3-hexafluoropropan-2-ol at room temperature

The treatment of reactive aromatic compounds by bromine, chlorine or iodine chloride in 1,1,1,3,3,3-hexafluoropropan-2-ol gives persistent solutions of the corresponding radical cations, in spite of the fact that a nucleophile, a chloride or bromide ion, is simultaneously generated.