We have recently turned our attention to the preparation and reactions of fluorous-tagged stable radicals. It occurred to us that stable nitroxyl radicals present considerable potential for modification for use either in fluorous media or by clean separation methods, such as by fluorous-organic liquid–liquid extraction or by fluorous solid-phase separation. ... One of the most popular stable free radicals is 2,2,6,6-tetramethylpiperidine-1-oxyl or TEMPO 1. For ease of use and ...
