反应详情

Added 16 mL of ethanol, 10% Palladium on activated carbon, 50% wet with water for safety (129 mg), and hydrazine monohydrate (200 ul) to 1,5,5-Trimethyl-7-nitro-1,3,4,5-tetrahydro-benzo[b]azepin-2-one (257 mg, 1.035 mmol). Heated reaction to 60° C. overnight. Filtered reaction through Celite, and concentrated under reduced pressure to obtain a colorless sticky solid, 7-Amino-1,5,5-trimethyl-1,3,4,5-tetrahydro-benzo[b]azepin-2-one (223 mg, 99%). LCMS: m/z=219.04 (M+H+), 1H NMR (400 MHz, DMSO-d6) δ 6.95 (d, 1H, J=8.3 Hz), 6.57 (d, 1H, J=1.5 Hz), 6.48 (dd, 1H, J=8.3, 1.3 Hz), 5.09 (s, 2H), 3.07 (s, 3H), 2.09 (m, 2H), 1.88 (m, 2H), 1.19 (s, 6H).

1. temperatureHeated
2. customreaction to 60° C. overnight
3. filtrationFiltered
4. customreaction through Celite
5. concentrationconcentrated under reduced pressure