Abstract
Treatment of cholesterol acetate (Ia), androst-5-ene-3β, 17β-diol diacetate (Ib), and 3β-hydroxyalndrost-5-en-17-one acetate (Ic) with nitrosyl chloride afforded the corresponding 5α-chloro-6β-nitro compound in high yield. The adduct could be converted readily to a Δ5-6-nitro compound on treatment under basic conditions and also into a Δ4-3-oxo-6α-nitrosteroid derivative.
