title: Photochemical degradation of barbituric acid derivatives. Part 8: Photolysis of sodium salts of barbiturates in solid state.
abstract: After the UV irradiation of suspensions of barbiturate sodium salts in paraffin oil the IR spectra revealed two IR absorption bands at ca. 2170 and 2250 cm-1. The effects of different conditions of the photochemical process and the addition of nucleophilic reagents after irradiation on the intensity of these bands were studied. The origin of 2170 cm-1 band was interpreted in terms of the isocyanate intermediate which is formed after the pyrimidine ring opening.
authors.affiliation: Department of Organic Chemistry, N. Copernicus Academy of Medicine, Kraków, Poland.
authors.forename: K
authors.initials: K
authors.lastname: Jochym
authors.forename: H
authors.initials: H
authors.lastname: Bartoń
authors.forename: J
authors.initials: J
authors.lastname: Bojarski
mesh_terms: D001463:Barbiturates / Q000032:analysis* / Q000528:radiation effects; D007259:Infrared Rays; D010777:Photochemistry; D014465:Ultrasonics; D014466:Ultraviolet Rays
chemical_list: D001463:Barbiturates