Reaktion #70398

ord-d1771f0540504ea385a0197374019030

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    WaschenThe combined organic extracts were washed with H2O
  2. 2
    Trocknendried over Na2SO4
  3. 3
    Sonstigeevaporated to dryness

Vorschrift

The title compound II-ax was prepared in 89% yield from 3,3:17,17-bis(ethylendioxy)-7α-hydroxyandrostane by the procedure described above for the preparation of 6-methyleneandrostane-3,17-dione (II-ac, Prepn. 13). The combined organic extracts were washed with H2O, dried over Na2SO4 and evaporated to dryness. 1H-NMR (300 MHz, dmso-d6, ppm from TMS): δ 4.32 (1H, bb), 3.75 (1H, m), 2.40-1.00 (20H, m), 0.96 (3H, s), 0.78 (3H, s).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08536160B2uspto-grants-2013_09