Triphenylarsine catalyzes the formation of aziridines from tosyl imines and aromatic
diazo compounds in a one-pot reaction. It is the first example of catalytic aziridination
mediated by arsonium ylides. It gave aziridines in excellent diastereoselectivity
with pentafluorophenyl diazomethane as the substrate. This catalytic reaction is complementary
with the reaction mediated by sulfur ylides.
diazocompound - ylide - fluorine - aziridine - catalyze