Diethyl (ethoxymethylene)malonate → HCID 86739115, Verbindung
Reaktionsgleichung
[NH2:1][C:2]1[S:3][CH:4]=[C:5]([CH:7]([CH2:9][CH3:10])[CH3:8])[N:6]=1.C(O[CH:14]=[C:15]([C:21]([O:23][CH2:24][CH3:25])=[O:22])[C:16]([O:18][CH2:19][CH3:20])=[O:17])C>>[C:21]([C:15]([C:16]([O:18][CH2:19][CH3:20])=[O:17])=[CH:14][NH:1][C:2]1[S:3][CH:4]=[C:5]([CH:7]([CH2:9][CH3:10])[CH3:8])[N:6]=1)([O:23][CH2:24][CH3:25])=[O:22]Komponenten
3
Versuchsvorschrift
2-Amino-4-(2-butyl)thiazole (8.44 g., 54 mmoles) and diethyl ethoxymethylenemalonate (11.7 g., 54 mmoles) were combined and heated on a steam bath for 1 hour and cooled to yield 2-(2,2-dicarbethoxyethenylamino)-4-(2-butyl)thiazole (17.6 g., Rf 0.75 on silica gel thin layer chromatography with chloroform/1% ethanol as eluant).
Aufarbeitung
- temperatureheated on a steam bath for 1 hour
- temperaturecooled