title: Photochemical dehydrogenation of 5, 6-dihydropyrimidines.
abstract: 5, 6-Dihydropyrimidines can be oxidized photochemically to the original pyrimidines with light of lambda greater than 300 nm in the presence of transition metal salts which act as sensitizers. A hydrogen atom abstraction by hydroxyl radical is suggested as the reaction mechanism.
mesh_terms: D003300:Copper; D005290:Ferric Compounds; D008027:Light; D010084:Oxidation-Reduction; D010777:Photochemistry; D011743:Pyrimidines / Q000528:radiation effects*
chemical_list: D005290:Ferric Compounds; D011743:Pyrimidines; D003300:Copper