Abstract In this work, we introduce a new class of halodiazocarbonyl compounds, α- halodiazoacetamides, which through a metal-free, ambient-temperature thermolysis perform intramolecular C–H insertions to produce α-halo-β-lactams. When carried out with α- bromodiazoacetamides bearing cyclic side chains, the thermolysis reaction affords bicyclic α- halo-β-lactams, in some cases in excellent yields, depending on the ring size and ...
