HRID1658706

反应详情

EQUATION

反应方程式

HRID 1658706 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

500 mg. of 17β-acetoxy-6α,7α-epoxy-11β-fluoro-4-androsten-3-one is introduced at room temperature into 25 ml. of glacial acetic acid saturated with gaseous hydrogen chloride. After 24 hours, the solution is poured into ice/water. The thus-precipitated product is vacuum-filtered, taken up in methylene chloride, washed with water, and dried. After recrystallization of the crude product from acetone/hexane, 210 mg. of 17β-acetoxy-6-chloro-11β-fluoro-4,6-androstadien-3-one is obtained. UV: ε283 = 20,300.

WORKUP

后处理

  1. filtrationThe thus-precipitated product is vacuum-filtered
  2. washwashed with water
  3. customdried
  4. customAfter recrystallization of the crude product from acetone/hexane, 210 mg