Convenient general preparation of oxygenated monofluoro- and gem-difluoro-5a-androstanes using diethylaminosulphur trifluoride
作者:T. Geoffrey C. Bird、Peter M. Fredericks、Ewart R. H. Jones、G. Denis Meakins
DOI:10.1039/c39790000065
日期:——
Hydroxy-ketones in the 5α-androstane series are converted into fluoro-ketones by diethylaminosulphurtrifluoride under mild conditions; acetoxy-ketones give acetoxydifluorides under more vigorous conditions.