2-[2-(2-溴苯氧基)乙氨基]乙醇

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 1-bromo-2-(2-bromoethoxy)benzene (C21) (5.66 g, 20.22 mmol) and 2-aminoethanol (12.30 g, 202 mmol) in 2-propanol (50 mL) was heated to 80° C. After heating overnight, the reaction mixture was cooled to room temperature and concentrated in vacuo. The resulting residue was taken up in dichloroethane and washed with saturated aqueous sodium bicarbonate solution and water. The organic layer was dried over magnesium sulfate, filtered and the filtrate was concentrated in vacuo to afford the title compound as a clear yellow oil. Yield: 5.12 g, 20.18 mmol, 97%. LCMS m/z 259.9 (M+1). 1H NMR (400 MHz, CDCl3) δ 2.88 (dd, J=5.3, 5.1 Hz, 2H), 3.08 (dd, J=5.1, 5.1 Hz, 2H), 3.67 (dd, J=5.3, 5.3 Hz, 2H), 4.14 (dd, J=5.1, 5.1 Hz, 2H), 6.85 (ddd, J=7.6, 7.6, 1.3 Hz, 1H), 6.91 (dd, J=8.2, 1.2 Hz, 1H), 7.26 (ddd, J=8.2, 7.6, 1.5 Hz, 1H), 7.54 (dd, J=8.0, 1.6 Hz, 1H). After heating overnight concentrated in vacuo washed with saturated aqueous sodium bicarbonate solution and water The organic layer was dried over magnesium sulfate filtered the filtrate was concentrated in vacuo