Environmentally benign perfluorooctanesulfonate alternatives using a Zn/CuI mediated Michael-type addition in imidazolium ionic liquids.

The design and synthesis of hemi-fluorinated perfluorooctanesulfonic acid (PFOS) alternatives is described using a Zn/CuI mediated Michael-type addition reaction in ionic liquids considering environmentally benign reaction conditions as well as products. One of the new potassium sulfonates showed promising surface tension activities when compared to that of the PFOS potassium salt. [ABSTRACT FROM AUTHOR]