In
this work, the use of N-acyloxybenzamides as
efficient acyl nitrene precursors under photoredox/iron dual catalysis
is reported. The resulting acyl nitrenes could be captured by various
types of C–H bonds and S- or P-containing molecules. Mechanism
investigations suggested that the formation of the acyl nitrene from
the N-acyloxybenzamide occurs by a photoredox process,
and it is believed that in this redox process oxidative N–H
bond cleavage of the N-acyloxybenzamide occurs prior
to reductive N–O bond cleavage of the N-acyloxybenzamide.