The Epoxidation of Androstane and Pregnane 2,4-Dienes
Abstract
The epoxidation of 6β-acetoxyandrosta-2,4-diene-17-one, 6β-acetoxypregna-2,4-diene-20-one and the corresponding 6-ketones with m-chloroperbenzoic acid is shown to give, unexpectedly, the 4α,5α-monoepoxides.