Trifluoromethyl Groups as Radical Species

The trifluoromethyl radical is electrophilic in nature (61JA4732) and may be generated from precursors photochemically, thermally, by chemical reactions, and electrochemically (92T6555). A large number of precursors 

Bis(trifluoromethyl)tellurium and trifluoromethyl iodide have been shown to be suitable trifluoromethylation reagents for furan [90JFC-(46)265]. 

Trifluoromethyl radicals have been generated thermally from bis-(trifluoromethyl)tellurium [90JFC(46)265], iodotrifluoromethane [8IJFC-(17)345], bromotrifluoromethane, hexafluoroacetone, or A(-trifluoromethyl-N-nitrosotrifluoromethylsulfonamide. 

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