title: Structural determination of epsilon-lactams by 1H and 13C NMR.
abstract: The thermodynamic products (epsilon-lactams) of the degradation of ten different spirocyclic oxaziridines were analyzed by 1H and 13C NMR spectroscopy. The preferred conformations were determined by examining the homonuclear spin-spin coupling constant and the chemical shift effects of the N-substituent and the alkyl group of the aliphatic ring on 1H and 13C NMR spectra.
authors.affiliation: Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Tepic Nayarit, Mexico.
authors.forename: Rubén
authors.initials: R
authors.lastname: Montalvo-González
authors.forename: Armando
authors.initials: A
authors.lastname: Ariza-Castolo
mesh_terms: D002247:Carbon Isotopes; D007769:Lactams / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011522:Protons; D012015:Reference Standards; D013237:Stereoisomerism
chemical_list: D002247:Carbon Isotopes; D007769:Lactams; D011522:Protons