Perfluorophenyl nitrene

Particular attention has been devoted this year to the study of fluorinated aryl azides. This interest stems from their potential use as photoaffinity probes due to the ease with which perfluorophenyl nitrene undergoes C-H bond insertion. Perfluorin-ated azide derivatives of methyl benzoate afford photochemically... 

Scheme 11.36 Products of bimolecular reactions of singlet perfluorophenyl nitrenes...

An increase of triplet nitrene absorption relative to azepine absorption was observed upon LFP of perfluorophenyl azide in methanol. This effect was not observed in acetonitrile, which has a similar dielectric constant, or in... 

We 12y 13) and others 14) have developed perfluorophenyl azides (PFPAs) as a new class of photolabeling agents (i5) with improved CH insertion efficiency in hydrocarbon solvents over nonfluorinated analogues. The nitrene intermediates derived from photolysis of PFPAs do not undergo ring expansion 12) y which is probably the main wasteful reaction pathway of nonfluorinated... 

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