Diverse and chemoselective sigmatropic shift rearrangements of multisubstituted N,O-diarylhydroxylamines

Designed multisubstituted N , O -diarylhydroxylamines were prepared from N -acyl- N -arylhydroxylamines and aryl halides with ortho and/or para -EWG(s) (or arylbornic acids) and they underwent diverse and chemoselective sigmatropic shift rearrangements.