HRID1701431
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
Toluene-4-sulphonic acid (120 mg) was added to a solution of 20,20-ethylenedioxy-11β-dipropylaminoacetoxy-5α-pregnan-3α-ol (260 mg) in acetone (20 ml). The mixture was kept at room temperature until reaction was judged complete (TLC), when sodium bicarbonate solution was added and the precipitated material collected by filtration. Crystallization from ether-petroleum ether afforded title compound, m.p. 120°-122°, [α]D +92°.
WORKUP
后处理
- customThe mixture was kept at room temperature until reaction
- additionwas added
- filtrationthe precipitated material collected by filtration
- customCrystallization from ether-petroleum ether