Ammonia → HCID 10265671, Verbindung
Reaktionsgleichung
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[N:11]=[C:10](Cl)[N:9]=[C:8]2[NH:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[CH3:21].[NH3:22]>>[NH2:22][C:10]1[N:9]=[C:8]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=2[CH3:21])[C:7]2[C:12](=[C:3]([O:2][CH3:1])[CH:4]=[CH:5][CH:6]=2)[N:11]=1Komponenten
3
Versuchsvorschrift
8-Methoxy-4-(2-methylphenylamino)-2-chloroquinazoline (1.8 g, 0.006 mol) was dissolved in ethanolic ammonia and heated in a sealed vessel at 120° for 3 hours. After cooling, removal of excess solvent and chromatography (silica gel, 2% methanolic ammonia in chloroform) the 2 amino-4-(2-methylphenylamino)-8-methoxyquinazoline was isolated as crystals (0.52 g, 31%) from ethanol, m.p. 218°-220°.
Aufarbeitung
- temperatureheated in a sealed vessel at 120° for 3 hours
- temperatureAfter cooling
- customremoval of excess solvent and chromatography (silica gel, 2% methanolic ammonia in chloroform) the 2 amino-4-(2-methylphenylamino)-8-methoxyquinazoline