HRID1076836
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 hot solution of 5-methoxy-2-[4-(2-pyrrolidin-1-ylethoxy)anilino]benzothiazole (0.738 g.) in ethanol (45 ml.) is treated with a hot solution of citric acid (0.384 g.) in ethanol (2.5 ml.). The solution is allowed to cool to room temperature and then kept at 0° - 10°C. overnight. The precipitate which forms is collected by filtration, washed with ethanol and dried to give 5-methoxy-2-[4-(2-pyrrolidin-1-ylethoxy)anilino]benzothiazole citrate, m.p. 155° - 156°C. (dec.) with previous softening. Elemental analysis satisfactory for C26H31N3O9S.
WORKUP
后处理
- filtrationThe precipitate which forms is collected by filtration
- washwashed with ethanol
- customdried