Affiliation:
1. School of Chemistry, Physics and Environmental Science, University of Sussex, Brighton, Sussex BN1 9QJ, UK
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.