[CH:1]([NH:3][C:4]1[CH:17]=[CH:16][CH:15]=[CH:14][C:5]=1[CH2:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][N:9]=1)=[O:2].C[I:19].[I-].[NH+]1C=CC=C[CH:22]=1>CC(C)=O>[I-:19].[CH:1]([NH:3][C:4]1[CH:17]=[CH:16][CH:15]=[CH:14][C:5]=1[CH2:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][N+:9]=1[CH3:22])=[O:2]A solution of 2-(o-formamidophenethyl)pyridine (55 g., 0.243 mole) and methyl iodide (38 g., 0.268 mole) in 500 ml. of acetone is refluxed for 20 hours. The mixture is cooled at 5°C. and filtered to provide 82 g. (92%) of the pyridinium iodide having melting point of 199.5°-201.5°C.
Loading…