2-Aminothiazole → HCID 57433652, Verbindung

Reaktionsgleichung

[NH2:1][C:2]1[S:3][CH:4]=[CH:5][N:6]=1.Br[CH2:8][C:9]([C:11]1[CH:16]=[CH:15][CH:14]=[C:13]([C:17]#[N:18])[CH:12]=1)=O.[OH-].[NH4+]>C(O)C>[C:17]([C:13]1[CH:12]=[C:11]([C:9]2[N:1]=[C:2]3[N:6]([CH:8]=2)[CH:5]=[CH:4][S:3]3)[CH:16]=[CH:15][CH:14]=1)#[N:18]

Komponenten

Versuchsvorschrift

To a mixture of 2-aminothiazole (3.29 g, 32.9 mmol) and 2-bromo-3′-cyano-acetophenone (7.37 g, 32.9 mmol) was added absolute ethanol (250 mL). The reaction was allowed to reflux with vigorous stirring for 20 hours. The reaction mixture was reduced to half its original volume in vacuo. The remaining suspension was poured onto ice-water (200 mL) and the resulting mixture was basified by addition of ammonium hydroxide solution (30%, 100 mL). Product was collected by filtration and washed with water (50 mL), dried in a vacuum oven at 50° C. to provide 6-(3-cyanophenyl)-imidazo[2,1-b]thiazole (6.0 g, 81%). It was used with out further purification. LCMS: 226 [M+H].