HRID28343
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 1.09 g (3.63 mmol) of 3-hydroxy-2-methoxy-estra-1,3,5(10)-trien-17-one in 60 ml of toluene (abs.) was mixed with 3.7 g of Lawesson's reagent, and it was refluxed for four hours. After water was added, it was extracted with dichloromethane (3×), and the combined organic phases were washed with water, dried on sodium sulfate, and concentrated by evaporation in a rotary evaporator. Flash chromatography (n-hexane/ethyl acetate) yielded 412 mg (36%) of the desired product as yellow crystals.
WORKUP
后处理
- temperaturewas refluxed for four hours
- extractionit was extracted with dichloromethane (3×)
- washthe combined organic phases were washed with water
- customdried on sodium sulfate
- concentrationconcentrated by evaporation in a rotary evaporator