2-Acetylpyridine → 3-Dimethylamino-1-(2-pyridyl)prop-2-en-1-one
Reaktionsgleichung
[C:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][N:5]=1)(=[O:3])[CH3:2].CO[CH:12](OC)[N:13]([CH3:15])[CH3:14]>>[N:5]1[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=1[C:1](=[O:3])[CH:2]=[CH:12][N:13]([CH3:15])[CH3:14]Komponenten
3
Reaktionsbedingungen
- Temperatur
- 104 °C
Versuchsvorschrift
2-Acetylpyridine (48.28 g, 0.398 mole) and N,N-Dimethylformamide dimethyl acetal (95 g. 0.797 mole) were added to a flask. The reaction mixture was heated to 104° C. for 15 hours. The excess N,N-Dimethylformamide dimethyl acetal was evaporated off. The residue was recrystallized from a mixture of toluene (140 mL.) and heptane (955 mL.) to give 1-(2-pyridyl)-3-dimethylamino-2-propen-1-one (58.7 g, 70% yield).
Aufarbeitung
- customThe excess N,N-Dimethylformamide dimethyl acetal was evaporated off
- customThe residue was recrystallized from a mixture of toluene (140 mL.) and heptane (955 mL.)
Quellen und Nachweise
- ORD-Eintrag
- ord-03c12c32833a4d7faa592f0a792a4b74
- Quelldatensatz
- uspto-grants-2005_02
- Patentnummer
- US06858327B2
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