Dichloromethane → 5-Bromo-1,3-dimethoxy-2-phenoxybenzene
反応式
[Br:1][C:2]1[CH:7]=[C:6]([O:8][CH3:9])[C:5]([OH:10])=[C:4]([O:11][CH3:12])[CH:3]=1.[C:13]1(B(O)O)[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.C(Cl)Cl>>[Br:1][C:2]1[CH:3]=[C:4]([O:11][CH3:12])[C:5]([O:10][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[C:6]([O:8][CH3:9])[CH:7]=1参加物
4
実験手順
4-bromo-2,6-dimethoxyphenol (500 mg, 0.002 mol), phenylboronic acid (0.65 g, 0.0054 mol), TEA (1.8 mL, 0.013 mol), cupric acetate (0.62 g, 0.0034 mol) and DCM (30 mL, 0.4 mol) were added to a 100 mL oven dried flask and the reaction was stirred at rt for 48 h. Reaction mixture was then filtered through celite. The filtrate was concentrated in vacuo to give a residue which was purified by silica gel chromatography, eluting with 5% EtOAc in hexane. 1H NMR (400 MHz, CDCl3): δ=3.77 (s, 6H), 6.82 (s, 2H), 6.86 (d, J=7.83 Hz, 2H), 6.96-7.04 (m, 1H), 7.22-7.27 (m, 2H).