“…Regarding existing aziridination methods (Scheme a), a large body of work has used hypervalent iodine compounds such as N -tosyliminophenyliodinane (PhINTs) − and derivatives , but also phthalimides, , sulfonamides, , chloramine-T, N -sulfonyl imines, azides like 2,2,2-trichloroethoxysulfonyl azide (TcesN 3 ), , and others, − with frequent use of homogeneous transition metal catalysts. Although these methods can produce aziridines even from unactivated alkenes in some cases, they all form N -protected aziridines.…”