Journal of Organic Chemistry p. 2201 - 2204 (1980)
Update date:2022-08-02
Topics:
Sialom, Bonita
Mazur, Yehuda
19,19-Difluorocholesteryl acetate (6), prepared by fluorination of 19-oxocholesteryl acetate (5), was converted to the respective 5,7-diene (7) which, on irradiation, gave both 19,19-difluoroprevitamin D3 (8) and 19,19-difluorotachysterol (9).O
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