反应详情

A solution of 4-(3-thienyl)-8-chloro-3-methoxy-2,5-dioxo-2,5-dihydro-1H-benz[b]azepine (0.74 g) in 2.4N HCl/THF (1:1, 600 mL) was allowed to stir at room temperature for 48 hours. The reaction mixture was partitioned between ether and water. The organic portion was dried (MgSO4), filtered, and concentrated in vacuo. The residue was recrystallized twice from ethyl acetate/hexanes (2:1) to afford the title compound (0.173 g); mp 248 C. (dec.); NMR: 11.75 (bs, 1), 10.45 (bs, 1), 7.80 (d, 1, J=8.6), 7.64 (m, 1), 7.48 (m, 2), 7.33 (dd, 1, J=8.6, 2.0), 7.15 (dd, 1, J=5.0, 1.2). Analysis for C14H803NSCl: Calculated: C, 55.00; H, 2.64; N, 4.58; Found C, 54.77; H, 2.81; N, 4.56

1. customThe reaction mixture was partitioned between ether and water
2. dry with materialThe organic portion was dried (MgSO4)
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customThe residue was recrystallized twice from ethyl acetate/hexanes (2:1)