m-Chloroperbenzoic acid → HCID 14823693, compound

Participants

Reaction Steps

To a stirred solution of 1.0 g of 9-fluoro-11β-hydroxy-17-(methylthio)androsta-1,4,16-trien-3-one (see Example 1B) in chloroform (500 ml) is added a solution of 85% m-chloroperbenzoic acid (552 mg) in chloroform (10 ml) in the course of 3.0 minutes. In less than 10 minutes, the peracid and the starting steroid disappear. The solution is then washed with a dilute potassium carbonate solution and water, dried, concentrated (to about 10 ml) and diluted with ethyl acetate resulting in the precipitation of small, light needles of the analytical specimen of the title compound, (1.0 g), melting point 268°-269° C (dec.). This is a mixture of the two sulfinyl isomers.

Provenance & Evidence