反应详情

To a solution of 6-fluoro-1,1-dimethyl-7-nitro-2,3-dihydro-1H-pyrrolo[1,2-a]indole (600 mg, 2.4 mmol) in ethanol (15 mL) was added ammonium formate (600 mg, 9.5 mmol) and Pd/C (10%, 129 mg, 0.12 mmol). The mixture was refluxed for 10 min. The Pd catalyst was removed via filtration through Celite and washed with ethanol. The filtrate was concentrated and purified by column chromatography (20-40% ethyl acetate-hexanes) to provide 6-fluoro-1,1-dimethyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-7-amine (260 mg, 49%). ESI-MS m/z calc. 218.1, found 219.2 (M+1)+. Retention time 1.01 minutes.

1. temperatureThe mixture was refluxed for 10 min
2. customThe Pd catalyst was removed via filtration through Celite
3. washwashed with ethanol
4. concentrationThe filtrate was concentrated
5. custompurified by column chromatography (20-40% ethyl acetate-hexanes)