Optically active amines. XII. Synthesis and spectral properties some optically active .alpha.-oximino ketones and .alpha.-amino ketone hydrochlorides. Dimerization of .alpha.-amino ketones
The preparation of 16-diazo-androstan-3β-ol-17-one (III) is described. Irradiation of III by U.V. light leads to contraction of the D-ring in the steroid molecule. The 16-diazo group has been replaced by 16β-acetate, 16α-halogen and 16ζ-alkoxy substituents.