Paper J. Chem. Soc., 1965, 6 - 11, DOI: 10.1039/JR9650000006
-------------------------------------------------------------------------------- 2. Reactions of ketones with oxidising agents. Part II. Acetoxylation of 11- and 20-oxo-steroids with lead tetra-acetate in the presence of boron trifluoride
J. D. Cocker, H. B. Henbest, G. H. Phillipps, G. P. Slater and D. A. Thomas