The 11α- and 11β-modified androst-5-ene derivatives 3a,b as well as the exo- and endocyclic dehydrated compounds 4a−c and 5b−c were produced using the oxalate derivatives of the highly hindered 11β-hydroxyandrost-5-enes 1a−c. The 11-tetrahydrofuran derivative 6 was produced for the first time with good diastereoselectivity by an intramolecular 5-exo cyclization under radical conditions from the corresponding