Hexane → HCID 21559907, Verbindung

Reaktionsgleichung

[NH2:1][C:2]1[C:3]([Cl:20])=[N:4][CH:5]=[N:6][C:7]=1[NH:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[C:12]([O:18][CH3:19])[CH:11]=1.[CH2:21](S(O)(=O)=O)C.CCCCCC>C(OCC)(OCC)OCC>[Cl:20][C:3]1[N:4]=[CH:5][N:6]=[C:7]2[C:2]=1[N:1]=[CH:21][N:8]2[CH2:9][C:10]1[CH:15]=[CH:14][C:13]([O:16][CH3:17])=[C:12]([O:18][CH3:19])[CH:11]=1

Komponenten

Versuchsvorschrift

To a suspension of 15.6 g (52.8 mmols) of 5-amino-4-chloro-6-(3,4-dimethoxybenzylamino)pyrimidine in 100 ml of triethyl orthoformate was added 149 mg (1.36 mmols) of ethanesulfonic acid and the resulting mixture was heated at 80° for 15 min. Upon cooling and addition of hexane to the reaction mixture, a yellow precipitate formed which was collected by filtration; yield, 15.4 g (95.6%) mp 159°-163°. Recrystallization from EtOH--H2O gave the analytical sample; yield 13.2 g (82.2%) mp 160°-164°.