反应详情

In a 200-mL r.b. flask, a solution of 1,2,3,4-tetrahydro-2,2-dimethyl-7-nitroquinoline (1.00 g, 4.84 mmol) in 1:1 EtOH:EtOAc (40 mL) was treated with 10% Pd/C (0.20 g). The reaction mixture was de-gassed and fitted with a balloon of H2. The reaction mixture was stirred for 6 h, de-gassed, and filtered through a pad of Celite. The pad was rinsed with EtOAc (300 mL). The filtrate was concentrated to afford 0.85 g (99%) of the crude aniline as a reddish oil. Data for 7-amino-1,2,3,4-tetrahydro-2,2-dimethylquinoline: 1H NMR (400 MHz, CDCl3) 6.77 (d, J=7.9, 1H), 6.00 (dd, J=7.9, 2.2, 1H), 5.81 (d, J=2.2, 1H), 3.47 (bs, 1H), 3.40 (bs, 2H), 2.66 (t, J=6.7, 2H), 1.65 (t, J=6.7, 2H), 1.18 (s, 6H).

1. customThe reaction mixture was de-gassed
2. customfitted with a balloon of H2
3. customde-gassed
4. filtrationfiltered through a pad of Celite
5. washThe pad was rinsed with EtOAc (300 mL)
6. concentrationThe filtrate was concentrated