HRID42112

反应详情

EQUATION

反应方程式

HRID 42112 的结构方程式

PROCEDURE

实验过程

The title compound II-at was prepared in 50% yield from 3,3:17,17-bis(ethylendioxy)-7-(E)-hydroxyiminoandrostane 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. The crude product was purified by flash chromatography (SiO2, n-hexane/EtOAc 6/4). 1H-NMR (300 MHz, DMSO-d6, ppm from TMS: δ 10.37 (1H, s), 2.99 (1H, m), 2.58-0.67 (19H, m), 1.12 (3H, s), 0.82 (3H, s).

WORKUP

后处理

  1. washThe combined organic extracts were washed with H2O
  2. dry with materialdried over Na2SO4
  3. customevaporated to dryness
  4. customThe crude product was purified by flash chromatography (SiO2, n-hexane/EtOAc 6/4)