Abstract
N-suIfonyltriphenylphosphinimines and N-sulfonyltriphenylarsinimines are prepared by the reaction of triphenylphosphine or triphenylarsine under nitrene-producing conditions with I-N ylide (PhI=NSO2R). Triphenylarsinimines can also be generated by a non-nitrene route from triphenylarsine, iodobenzene diacetate, and sulfonamides via triphenylarsine diacetale, Ph3As(OAc)2.