HRID1701444
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
Sodium borohydride (1.24 g) in water (7 ml) was added to a solution of methyl 3α-hydroxy-11-oxo-5α-androstane-17β-carboxylate (2.58 g) in methanol (60 ml) and the mixture refluxed for 30 minutes. A further portion of sodium borohydride (200 mg) in a little water was added and refluxing continued for 10 minutes more. Most of the solvent was removed in vacuo and, after cooling, the crystalline product was collected by filtration. Recrystallization from aqueous methanol afforded title compound (1.662 g),
WORKUP
后处理
- temperaturethe mixture refluxed for 30 minutes
- temperaturerefluxing
- customMost of the solvent was removed in vacuo
- temperatureafter cooling
- filtrationthe crystalline product was collected by filtration
- customRecrystallization from aqueous methanol