title: Bicyclic enamines. II. Protonation and spectra of some carbonyl conjugated enamines.
mesh_terms: D000588:Amines / Q000032:analysis*; D007259:Infrared Rays; D007783:Lactones / Q000032:analysis; D011522:Protons; D013053:Spectrophotometry; D014466:Ultraviolet Rays
chemical_list: D000588:Amines; D007783:Lactones; D011522:Protons