N-bromobutanimide → 2-Bromo-4-(4-propylmorpholin-2-yl)phenol
反応式
[CH2:1]([N:4]1[CH2:9][CH2:8][O:7][CH:6]([C:10]2[CH:15]=[CH:14][C:13]([OH:16])=[CH:12][CH:11]=2)[CH2:5]1)[CH2:2][CH3:3].[Br:17]N1C(=O)CCC1=O>ClCCl>[Br:17][C:12]1[CH:11]=[C:10]([CH:6]2[O:7][CH2:8][CH2:9][N:4]([CH2:1][CH2:2][CH3:3])[CH2:5]2)[CH:15]=[CH:14][C:13]=1[OH:16]参加物
4
実験手順
To the phenol from example 29 (200 mg, 0.9 mmol) in dichloromethane (5 ml) was added N-bromosuccinimide (161 mg, 0.9 mmol). The reaction mixture was stirred at room temperature for 55 hours, before concentrating in vacuo. The crude product was purified by column chromatography on silica eluting with dichloromethane:methanol (95:5) to give the title compound as a white foam (117.5 mg, 0.39 mmol, 44%). 1H NMR (CDCl3, 400 MHz) δ: 0.96 (t, 3H), 1.59 (q, 2H), 2.03 (t, 1H), 2.23 (t, 1H), 2.40 (t, 2H), 2.81 (d, 1H), 2.98 (d, 1H), 3.82 (t, 1H), 4.01 (d, 1H), 4.56 (d, 1H), 6.96 (d, 1H), 7.20 (d, 1H), 7.49 (s, 1H). LRMS: m/z 302 (M−H+, Br isotope).