HRID1447090

反应详情

EQUATION

反应方程式

HRID 1447090 的结构方程式

PROCEDURE

实验过程

Under argon gas, 1 g of 9α-bromo-11β-hydroxy-4-androstene-3,17-dione is agitated in 5 ml of "Dowtherm" A for 3 minutes at 250° C. To work up the reaction mixture, the solvent is removed by steam distillation, the residue is dried and recrystallized from methylene chloride-isopropyl ether, thus obtaining 635 mg of 4-androstene-3,11,17-trione, mp 214°-216° C.

WORKUP

后处理

  1. customthe solvent is removed by steam distillation
  2. customthe residue is dried
  3. customrecrystallized from methylene chloride-isopropyl ether