HRID1597619
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
Ester 1-8 (365 mg, 0.69 mmol) was dissolved in CH2Cl2 (3.5 mL), then TFA (3.5 mL) was added. After 5 h the reaction mixture was concentrated, azeotroped with toluene, then purified by sequential flash chromatography (silica, 22:20:1:1 EtOAc/EtOH/H2O/NH4OH, then silica, 4:1:1 CH2Cl2/MeOH/HOAc, then 7:1:1 CH2Cl2/MeOH/HOAc), providing 1-9 as a white solid.
WORKUP
后处理
- concentrationAfter 5 h the reaction mixture was concentrated
- customazeotroped with toluene
- custompurified by sequential flash chromatography (silica, 22:20:1:1 EtOAc/EtOH/H2O/NH4OH