HRID918417
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
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
- extractionextracted with chloroform
- dry with materialThe chloroform solution is dried
- customevaporated in vacuo