Acetic Acid → 3-Methoxyestra-1,3,5(10),8-tetraen-17beta-ol

Participants

Reaction Steps

Add sodium borohydride (8.5 g) to 3-methoxyestra-1,3,5(10),8-tetraen-17-one (40 g) in ethanol (500 ml) and reflux the mixture for 90 minutes. Acidify the cooled solution with acetic acid, add water and extract with benzene. Wash, dry and evaporate the organic extract to obtain dl-3-methoxyestra-1,3,5(10),8-tetraen-17β-ol (37.5 g), m.p. 130°-133°; ultraviolet absorption peak at 280 mμ (ε16,100); infrared maxima at 3.1 μ, 3.58 μ, 6.25 μ, 6.4 μ, 6.7 μ

Provenance & Evidence