HRID42092

反应详情

EQUATION

反应方程式

HRID 42092 的结构方程式

PROCEDURE

实验过程

The title compound II-ah was prepared in 70% yield from 3,3:17,17-bis(ethylendioxy)-6-(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 and evaporated to dryness. The residue was purified by flash chromatography (SiO2, n-hexane/acetone 70/30). 1H-NMR (300 MHz, DMSO-d6, ppm from TMS): δ 10.61 (1H, s), 3.29 (1H, dd), 2.61-1.03 (19H, m), 0.88 (3H, s), 0.79 (3H, s).

WORKUP

后处理

  1. washThe combined organic extracts were washed with H2O
  2. customdried
  3. customevaporated to dryness
  4. customThe residue was purified by flash chromatography (SiO2, n-hexane/acetone 70/30)