反应详情

温度

50 °C

7-Nitro-3,4-dihydro-2(1H)-naphthalenone (200 mg, 1.1 mmol) was combined with ammonium acetate (807 mg, 10.5 mmol), sodium cyanoborohydride (86 mg, 1.4 mmol) and MeOH (5 mL) and heated to 50° C. for 15 h. The reaction was cooled and concentrated under vacuum and the residue was partitioned between EtOAc and water. The organic layer was washed with 5% aqueous K2CO3, brine and dried over Na2SO4. The crude was concentrated under vacuum and purified by silica gel flash column chromatography (0-100% (90% DCM/9% MeOH/1% NH4OH)/DCM). Purification provided 130 mg (65%) of the desired amine as a brown oil. 1H NMR (400 MHz, DMSO-d6) δ 7.90-7.89 (m, 2H), 7.31 (d, J=8.5 Hz, 1H), 3.06-2.88 (m, 3H), 2.84-2.72 (m, 1H), 2.54-2.44 (m, 2H), 1.81 (d, J=35.2 Hz, 2H), 1.51-1.42 (m, 1H).

1. temperatureThe reaction was cooled
2. concentrationconcentrated under vacuum
3. customthe residue was partitioned between EtOAc and water
4. washThe organic layer was washed with 5% aqueous K2CO3, brine
5. dry with materialdried over Na2SO4
6. concentrationThe crude was concentrated under vacuum
7. custompurified by silica gel flash column chromatography (0-100% (90% DCM/9% MeOH/1% NH4OH)/DCM)
8. customPurification