Friedel–Crafts phosphylation of benzene catalyzed by [trEHAm]Cl-XAlCl3 ionic liquids Original Research Article

The Friedel–Crafts reaction of PCl3 and benzene in [trEHAm]Cl-XAlCl3 ionic liquids (ILs) was investigated for clean synthesis of dichlorophenylphosphine (DCPP). A simple product isolation procedure was achieved, and the effects of ILs composition, reactant composition, reaction time and quantity of ILs on this reaction were studied. The [trEHAm]Cl-XAlCl3 ionic liquids gave this reaction a green character. A catalytic mechanism was proposed as well.