1-(4-Cyclohexyl-3-nitrophenyl)ethanone → 1-(3-Amino-4-cyclohexylphenyl)ethanone
反応式
[CH:1]1([C:7]2[CH:12]=[CH:11][C:10]([C:13](=[O:15])[CH3:14])=[CH:9][C:8]=2[N+:16]([O-])=O)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1>Cl>[NH2:16][C:8]1[CH:9]=[C:10]([C:13](=[O:15])[CH3:14])[CH:11]=[CH:12][C:7]=1[CH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1参加物
3
実験手順
Stannous chloride dihydrate (15.8 g, 0.07 mol) is added to a solution of 1-(4-cyclohexyl-3-nitrophenyl)ethanone (5.8 g, 0.0235 mol) in concentrated hydrochloric acid (35 mL) at 0-5° C. The reaction mixture is slowly brought to 60-65° C. and is stirred at this temperature for 15 minutes. After cooling to room temperature the reaction mixture is extracted with ethyl acetate (3×100 mL). The pH is adjusted to 8.0-9.0 using solid sodium bicarbonate. After washing with water (1×15 mL) the organic layer is dried over sodium sulfate and concentrated under reduced pressure to yield the crude, which is purified by column chromatography (230-400 mesh; ethyl acetate:n-hexane, 3:7) to give 1-(3-amino-4-cyclohexylphenyl)ethanone.