反应详情

9-Methyl-2-nitro-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocycloheptene (0.296 g, 1.42 mmol) and 10% Palladium on Carbon (50% Wet) (0.097 g) in Ethanol (20 mL) was shaken under an atmosphere of Hydrogen (30 psi) overnight. The mixture was filtered, washing with 20 mL ethanol. The filtrate was concentrated to give 9-Methyl-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-2-ylamine as a white solid (206 mg, 81%). 1H-NMR (CDCl3): 6.77 (d, 1H, J=8.2 Hz), 6.21 (s, 1H), 6.14 (d, 1H, J=8.2 Hz), 3.96 (t, 2H, J=5.5 Hz), 3.35 (br s, 2H), 3.09 (t, 2H, J=5.6 Hz), 2.86 (s, 3H), 1.99 (tt, 2H, J=5.5, 5.6 Hz).

1. filtrationThe mixture was filtered
2. washwashing with 20 mL ethanol
3. concentrationThe filtrate was concentrated