反应详情

A flask charged with 7-[5-nitro-6-(trifluoromethyl)-2-pridyl]-7-azabicyclo[2.2.1]heptane (530 mg, 1.845 mmol) and 10% Pd/C (53 mg, 0.4980 mmol) was flushed with nitrogen followed by evacuating under vacuum. Ethanol (6 mL) was added under inert atmosphere and the flask fitted with a hydrogen balloon. After 16 h of vigorous stirring the Pd/C was removed by filtration and solvent was removed under reduced pressure. The crude material was purified via silica gel chromatography (0-10% ethyl acetate in hexanes) to provide 6-(7-azabicyclo[2.2.1]heptan-7-yl)-2-(trifluoromethyl)pyridin-3-amine (381 mg, 80% yield). 1H NMR (400.0 MHz, DMSO-d6) δ 7.17 (d, J=8.9 Hz, 1H), 6.97 (d, J=8.9 Hz, 1H), 5.03 (s, 2H), 4.29 (s, 2H), 1.59 (t, J=3.4 Hz, 4H), 1.37 (d, J=6.7 Hz, 4H).

1. customwas flushed with nitrogen
2. customby evacuating under vacuum
3. additionEthanol (6 mL) was added under inert atmosphere
4. customthe flask fitted with a hydrogen balloon
5. customwas removed by filtration and solvent
6. customwas removed under reduced pressure
7. customThe crude material was purified via silica gel chromatography (0-10% ethyl acetate in hexanes)