Tin dichloride dihydrate → 6-Cyclopropyl-5-phenylpyridin-3-amine
反応式
[CH:1]1([C:4]2[C:9]([C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=3)=[CH:8][C:7]([N+:16]([O-])=O)=[CH:6][N:5]=2)[CH2:3][CH2:2]1.Cl[Sn]Cl.O>C(O)C>[CH:1]1([C:4]2[N:5]=[CH:6][C:7]([NH2:16])=[CH:8][C:9]=2[C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[CH2:3][CH2:2]1参加物
4
反応条件
- 温度
- 80 °C
実験手順
A mixture of 2-cyclopropyl-5-nitro-3-phenylpyridine (0.25 mmol, 0.06 g) and SnCl2.H2O (0.89 mmol, 0.2 g) in ethanol (2 ml) was heated at 80° C. for 1 hour. The solvent was evaporated and the crude residue was dissolved in water. The solution neutralised with 6N NaOH aqueous solution and extracted with dichloromethane. The solid residue was purified by chromatography over SiO2 eluting with dichloromethane/methanol mixtures affording 6-cyclopropyl-5-phenylpyridin-3-amine (0.03 g, 57% of yield) of the expected product.