反应详情

N-{[7-(methylsulfonyl)-4H-1,3-benzodioxin-2-yl]methyl}ethanamine (0.93 g, 3.4 mmol), benzylbromide (0.43 ml, 3.6 mmol), potassium carbonate (0.61 g, 4.4 mmol) and ACN (20 ml) were heated at 70° C. for 2 h. EtOAc (50 ml) was added before the reaction mixture was filtered and concentrated. Purification by flash chromatography (isooctane/EtOAc 1:1) afforded the title compound (1.1 g). 1H-NMR (400 MHz, MeOH): δ 7.47 (1H, dd, J1 8 Hz, J2 1.6 Hz), δ 7.31 (7H, m), δ 5.18 (1H, t, J 5.2 Hz), δ 4.97 (2H, dd, J1 41 Hz, J2 15 Hz), δ 3.09 (3H, s), δ 2.90 (2H, m), δ 2.70 (2H, m), δ 1.12 (3H, t, J 7.2 Hz).

1. filtrationwas filtered
2. concentrationconcentrated
3. customPurification by flash chromatography (isooctane/EtOAc 1:1)