反应详情

温度

20 °C

3-{4-[(6-Bromohexyl)oxy]but-1-ynyl}benzenesulfonamide (627 g) in IMS (1900 ml) was stirred with activated charcoal (314 g) at room temperature for 2 h and then filtered through a short pad of Celite. The filter pad was washed with IMS (4300 ml) and the filtrate transferred to a hydrogenation vessel. 5% Platinum on Charcoal (520.1 g, 50% water) was added and the reaction mixture was then stirred under an atmosphere of hydrogen (0.2 bar) at 20° C. for 6 h. The mixture was then filtered through a short pad of Celite and concentrated under reduced pressure to give the title compound (499 g) as a solid, LC RT=5.66, δ (DMSO-d6) 7.65 (1H, s), 7.64 (1H, d, J 9.2 Hz), 7.47 (1H, m), 7.42 (1H, m), 7.31 (2H, s), 3.50 (2H, t, J 6.9 Hz), 3.34 (4H, m), 2.66 (2H, t, J 7.5 Hz), 1.78 (2H, m), 1.62 (2H, m), 1.49 (4H, m), 1.37 (2H, m), 1.30 (2H, m).

1. filtrationfiltered through a short pad of Celite
2. washThe filter pad was washed with IMS (4300 ml)
3. customthe filtrate transferred to a hydrogenation vessel
4. addition5% Platinum on Charcoal (520.1 g, 50% water) was added
5. filtrationThe mixture was then filtered through a short pad of Celite
6. concentrationconcentrated under reduced pressure