[C:1]([C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([CH3:10])[N:5]=1)(=[O:3])[CH3:2].CO[CH:13](OC)[N:14]([CH3:16])[CH3:15]>>[CH3:13][N:14]([CH3:16])[CH:15]=[CH:2][C:1]([C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([CH3:10])[N:5]=1)=[O:3]A mixture of 25.0 g of 2-acetyl-6-methylpyridine and 35 ml. of N,N-dimethylformamide dimethylacetal is refluxed for 16 hours. The mixture is cooled and filtered to give 3-dimethylamino-1-(6-methyl-2-pyridyl)-2-propen-1-one as crystals, m.p. 97°-98° C.
Wird geladen…