HRID1973740

反应详情

EQUATION

反应方程式

HRID 1973740 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 3α-hydroxy-5α-pregnane-11,20-dione (1 g) in pyridine (ca 5 ml) was treated with acetic anhydride (2.5 ml) and allowed to stand overnight. The reaction mixture was poured into water and the solid collected by filtration and dried to give the title compound m.p. 150°-151°.

WORKUP

后处理

  1. filtrationthe solid collected by filtration
  2. customdried