HRID918417

反应详情

EQUATION

反应方程式

HRID 918417 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 21-chloro-11β,17-dihydroxy-16α-(2-hydroxyethoxy)pregna-1,4-diene-3,20-dione (7.6 mmoles) in 30 ml of pyridine is cooled to 0°C and 1 ml of methanesulfonyl chloride is added. After 2 hours the mixture is poured into cold dilute hydrochloric acid and extracted with chloroform. The chloroform solution is dried and evaporated in vacuo to yield the title compound.

WORKUP

后处理

  1. extractionextracted with chloroform
  2. dry with materialThe chloroform solution is dried
  3. customevaporated in vacuo