An efficient method for the chemoselective ring-opening rearrangement
of 3-aryloxaziridines by using silver triflate alone to afford nitrones,
or in the presence of a simple Brønsted acid to yield amides,
has been developed. Silver triflate plays an important role in both
transformations.
oxaziridines - rearrangement - chemoselectivity - nitrones - amides