反应 #531796
ord-cbb85f9e648a4b26ab9e7353822979bb
反应方程式
反应物
试剂
反应条件
后处理
- 1其他to obtain a brown-colored solution
- 2workup.DISTILLATIONthe supernatant solution was distilled away under reduced pressure
- 3其他The solid obtained
- 4洗涤was washed twice with 30 ml of aqueous saturated sodium hydrogen carbonate solution and twice with 30 ml of saturated brine
- 5其他the desiccant agent was removed by filtration
- 6workup.DISTILLATIONthe solvent of the filtrate was distilled away under reduced pressure
- 7其他The reaction mixture was purified by chromatography, and 0.1 g of the compound f, which
- 8其他was obtained
实验过程
The compound 25 (0.181 g) was dissolved in 1 ml of methylene chloride, and 0.5 ml of trifluoroacetic acid was added to that while being stirred, to obtain a brown-colored solution. After a white-colored precipitate was generated by adding 0.16 ml of triethylsilane, the supernatant solution was distilled away under reduced pressure. The solid obtained was dissolved by the new addition of 20 ml of methylene chloride, and was washed twice with 30 ml of aqueous saturated sodium hydrogen carbonate solution and twice with 30 ml of saturated brine. After the collected organic phase was dehydrated with magnesium sulfate, the desiccant agent was removed by filtration, and the solvent of the filtrate was distilled away under reduced pressure. The reaction mixture was purified by chromatography, and 0.1 g of the compound f, which was a white solid, was obtained.