A stable trifluoroacetylperfluorodiisopropylmethyl radical has been pr
epared by interaction of the onyloxytetrafluoroethyl)perfluorodiisopro
pylmethyl radical with anhydrous CsF. This reaction is the first examp
le of a chemical transformation of a C-centered radical which is not r
esonance-stabilized with retention of the radical center.