Preparation method of 2, 5-di-tert-octylhydroquinone

The invention discloses a preparation method of 2, 5-di-tert-octylhydroquinone, and relates to the technical field of organic synthesis. Hydroquinone and diisobutylene are used as reaction raw materials, and an ionic liquid is used as a catalyst and a solvent at the same time for reaction; wherein the ionic liquid is synthesized from a metal halide and an organic ligand, and the metal halide is aluminum trichloride; the organic ligand is triethylamine hydrochloride. By selecting the types of the ionic liquid, the higher yield and purity are achieved under the condition of shorter reaction period, the limitation of a volatile solvent on the reaction temperature is avoided, the reaction rate is increased, the problem of solvent residue is avoided, a large amount of acid wastewater is not generated in the reaction process, and the method is more energy-saving and environment-friendly. 本发明公开了一种2,5-二特辛基对苯二酚的制备方法，涉及有机合成技术领域。以对苯二酚和二异丁烯为反应原料，采用离子液体同时作为催化剂和溶剂进行反应；其中，离子液体是以金属卤化物和有机配体合成，金属卤化物为三氯化铝；有机配体为三乙胺盐酸盐。通过对离子液体种类的