반응 #433188
ord-b1fc6ac851624b46838b8df6ed3bd165
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후처리
- 1온도After warming to 100°
- 2workup.DISTILLATIONto distill off
- 3workup.ADDITIONA further 50 ml of toluene and 1 g of polyethylene glycol 1000 and 0.9 g of NaOH are added
- 4온도the mixture is heated
- 5온도under reflux
- 6온도After cooling
- 7workup.ADDITIONthe reaction mixture is diluted
- 8세척the solution is washed four times with water
- 9건조The organic solution is dried over Na2SO4
- 10기타evaporated
- 11workup.DISSOLUTIONThe residue is dissolved in 50 ml of methanol
- 12여과filtered through 200 g of silica gel
- 13세척washed with 500 ml of methanol
- 14기타The methanol solution is evaporated
실험 절차
0.71 ml of diethylenetriamine and 0.9 g of NaOH, dissolved in 3 ml of water, are added to 10.6 g of the monochloro derivative from Example 70, dissolved in 50 ml of toluene. After warming to 100°, the solvent begins to distill off. A further 50 ml of toluene and 1 g of polyethylene glycol 1000 and 0.9 g of NaOH are added and the mixture is heated with stirring for 14 h under reflux. After cooling, the reaction mixture is diluted using 100 ml of ethyl acetate and the solution is washed four times with water. The organic solution is dried over Na2SO4 and evaporated. The residue is dissolved in 50 ml of methanol, filtered through 200 g of silica gel and washed with 500 ml of methanol. The methanol solution is evaporated, the residue being a nearly colorless resin.