Morpholine → 4-(2-Chloroquinazolin-4-yl)morpholine

Reaktionsgleichung

[Cl:1][C:2]1[N:11]=[C:10](Cl)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]=1.[NH:13]1[CH2:18][CH2:17][O:16][CH2:15][CH2:14]1>C(O)C.O>[Cl:1][C:2]1[N:11]=[C:10]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]=1

Komponenten

Versuchsvorschrift

Twenty grams of 2,4-dichloroquinazoline was suspended in 200 ml of ethanol. To this suspension was added 17.4 g of morpholine. A mildly exothermic reaction ensued with the concomitant dissolution of the suspended dichloroquinazoline. When the reaction subsided, after about 10 minutes, the mixture was heated at reflux for 15 minutes, and then was allowed to cool. The reaction mixture then was diluted with 800 ml of water. The solid which precipitated was collected by filtration and was washed with water. After drying, the solid was recrystallized from 1:2 benzene:hexane, to give 18.5 g of 2-chloro-4-morpholinoquinazoline; m.p. 103°-105°. The following analytical data were obtained: