Ion liquids derived from Lewis acid based on titanium, niobium, tantalum, tin or antimony, and uses thereof

摘要

The ionic liquids according to the invention result from the reaction of a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of formula X⁺A^- in which A^- is a halide anion and X⁺ a quaternary ammonium, quaternary phosphonium or ternary sulphonium cation. These liquids can be used in particular in the liquid-phase fluorination using HF of saturated or unsaturated compounds having C-Cl groups.