4-Methoxybenzylamine → 5-Bromo-2-(4-methoxybenzylamino)pyrimidine
Reaktionsgleichung
[Br:1][C:2]1[CH:3]=[N:4][C:5](Cl)=[N:6][CH:7]=1.[CH3:9][O:10][C:11]1[CH:18]=[CH:17][C:14]([CH2:15][NH2:16])=[CH:13][CH:12]=1>>[Br:1][C:2]1[CH:3]=[N:4][C:5]([NH:16][CH2:15][C:14]2[CH:17]=[CH:18][C:11]([O:10][CH3:9])=[CH:12][CH:13]=2)=[N:6][CH:7]=1Komponenten
3
Versuchsvorschrift
5-Bromo-2-chloropyrimidine (300 mg, 1.55 mmol) was dissolved by heating at 120° C. in 4-methoxybenzylamine (2.1 g, 15.4 mmol), and the solution was stirred at the same temperature for 2 hours. The reaction mixture was directly subjected to silica gel column chromatography (hexane:ethyl acetate=30:1→5:1) for purification to obtain 5-bromo-N-(4-methoxybenzyl)pyrimidin-2-amine (445.4 mg, 98%) as colorless amorphous solid.
Aufarbeitung
- customThe reaction mixture was directly subjected to silica gel column chromatography (hexane:ethyl acetate=30:1→5:1) for purification