Dimethylamine → 5-Bromo-N,N-dimethylpyridine-3-carboxamide

Reaktionsgleichung

[Br:1][C:2]1[CH:3]=[N:4][CH:5]=[C:6]([CH:10]=1)[C:7](Cl)=[O:8].[CH3:11][NH:12][CH3:13].C1COCC1>N1C=CC=CC=1>[Br:1][C:2]1[CH:3]=[N:4][CH:5]=[C:6]([CH:10]=1)[C:7]([N:12]([CH3:13])[CH3:11])=[O:8]

Komponenten

Versuchsvorschrift

into a 100 mL round bottomed flask were added 5-bromonicotinoyl chloride (0.531 g, 2.41 mmol) and anhydrous pyridine (5 mL). A 2M solution of dimethylamine in THF (5 mL, 10.0 mmol) was added dropwise, and the reaction mixture was stirred at rt under N2 for 6 h after which it was concentrated under vacuum. The crude residue was partitioned between EtOAc and water. The layers were separated, and the organic phase was washed 3× with water, then treated with brine, dried (Na2SO4), filtered and concentrated to afford 5-Bromo-N,N-dimethyl-nicotinamide as a brown oil (0.4951 g, 89%). MS: m/z 229/231 [MH+].