METHOD FOR SYNTHESISING 2-ETHYL-ANTHRAQUINONE

摘要

A method comprising breaking down a complex of 2-(4'-ethylbenzoyl)benzoic acid, nHF and mBF3 to almost completely eliminate HF and BF3. The remaining solid is cyclised in concentrated sulphuric acid or oleum into non-pure 2-ethyl-anthraquinone (EAQ) which is then purified using a basic aqueous solution and by sublimation to give an EAQ that is pure enough to be used in a known manner for hydrogen peroxide synthesis.