N-benzyl alpha,beta-unsaturated gamma-oxoamides undergo under irradiation intramolecular hydrogen abstraction and consecutive cyclisation leading to spiranic beta-lactams; Extension of the reaction to one spiranic oxapenam is also reported.
N-benzyl alpha,beta-unsaturated gamma-oxoamides undergo under irradiation intramolecular hydrogen abstraction and consecutive cyclisation leading to spiranic beta-lactams; Extension of the reaction to one spiranic oxapenam is also reported.
N-benzyl alpha,beta-unsaturated gamma-oxoamides undergo under irradiation intramolecular hydrogen abstraction and consecutive cyclisation leading to spiranic beta-lactams; Extension of the reaction to one spiranic oxapenam is also reported.