1-Methyl-2-imidazolecarboxaldehyde → HCID 89420968, Verbindung
Reaktionsgleichung
[CH3:1][N:2]1[CH:6]=[CH:5][N:4]=[C:3]1[CH:7]=O.[CH3:9][C:10]([S:13]([NH2:15])=[O:14])([CH3:12])[CH3:11]>ClCCl>[CH3:1][N:2]1[CH:6]=[CH:5][N:4]=[C:3]1/[CH:7]=[N:15]/[S:13]([C:10]([CH3:12])([CH3:11])[CH3:9])=[O:14]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 25 °C
Versuchsvorschrift
In a 25 mL vial, cupric sulfate (1.96 g, 12.3 mmol), 1-methyl-1H-imidazole-2-carbaldehyde (450 mg, 4.09 mmol) and 2-methylpropane-2-sulfinamide (594 mg, 4.9 mmol) were combined with dichloromethane (2 ml) to give a light blue suspension. The reaction mixture was stirred at 25° C. for 15 h then filtered through Celite. The reaction mixture was filtered again through silica gel eluting with ethyl acetate. The crude reaction mixture was concentrated in vacuo to provide 670 mg (76%) of 2-methyl-propane-2-sulfinic acid 1-(1-methyl-1H-imidazol-2-yl)-meth-(E)-ylideneamide as an oil. 1H NMR (300 MHz, CDCl3): δ 8.62 (s, 1H), 7.27 (bs, 1H), 7.08 (bs, 1H), 4.02 (s, 1H), 1.26 (s, 9H).