HRID1415018
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
Add 3-phenylpropionyl chloride (2.9 g.) in benzene (10 cc.) to 13β-propyl-17β-hydroxy-gon-4-en-3-one (2.5 g.) in pyridine at -10°. Pour the mixture into ice water and extract with benzene-ether. Wash, dry and evaporate the extracts to a gum and purify by chromatography upon Florex. Recrystallize from ethyl acetate-hexane to obtain the title compound, m.p. 104°-108°. Ultraviolet absorption peak at 240 mμ (ε16,000); infrared absorption peaks at 5.76, 6.00 μ.
WORKUP
后处理
- extractionextract with benzene-ether
- washWash
- customdry
- customevaporate the extracts to a gum
- custompurify by chromatography upon Florex
- customRecrystallize from ethyl acetate-hexane