Ethylene Glycol → HCID 86749514, compound

Participants

Reaction Steps

A solution of 10.0 g of 3β-hydroxyandrostan-17-one (Elisberg E. et al., J. Amer. Chem. Soc., 1952, 74, 2814) and 0.10 g of p-toluensolfonic acid in 50 ml of benzene and 10 ml of ethylene glycol was kept on standing at reflux temperature for 10 hrs (water was removed by azeotropic distillation). The mixture was pured into water and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, evaporated to dryness under reduced pressure and the crude product was purified by flash-chromatography (SiO2) using n-hexane/ethyl acetate 80/20 as eluant to give 9.0 g of 17-ethylenedioxy-androstan-3β-ol as a colourless oil.

Provenance & Evidence