title: Selenium dioxide oxidation of vitamin D3 acetate to a dimer of 1-oxotransvitamin D3 acetate.
abstract: The treatment of vitamin D3 acetate with selenium dioxide and t-butyl hydroperoxide leads to a mixture from which a Diels-Alder dimer of 1-oxotransvitamin D3 acetate was isolated.
mesh_terms: D002762:Cholecalciferol; D010084:Oxidation-Reduction; D012643:Selenium; D018036:Selenium Compounds; D064588:Selenium Oxides; D013055:Spectrophotometry, Infrared
chemical_list: D018036:Selenium Compounds; D064588:Selenium Oxides; D002762:Cholecalciferol; D012643:Selenium