反应详情

温度

45 °C

To a solution of {3-[3-(2,2-diphenyl-ethylamino)-propoxy]-phenyl}-acetic acid methyl ester (3) (0.74 g, 0.002 mol) in DMF (10 mL), was added 3-methoxybenzyl bromide (0.47 g, 0.0023 mol) and powdered and potassium carbonate (1.93 g, 0.014 mol), the reaction mixture was heated and stirred at 45° C. for 18 hours. After cooling, the reaction mixture was diluted with water (30 mL) and extracted with EtOAc (3×25 mL). The combined organic extracts were washed with brine (15 mL), dried over Na2SO4, concentrated to an oil, which was purified by flash chromatography (8:2 Hexanes/EtOAc) to give the desired product as oil 0.81 g in 77% yield. 1H NMR (CDCl3) δ 7.19 (s, 1H), 7.17 (m, 11H), 7.09 (t, 1H), 6.83 (d, 1H), 6.72 (t, 2H), 6.59 (m 2H), 4.19 (t, 1H), 3.72 (s, 6H), 3.61 (s, 4H), 3.55 (d, 2H), 3.07 (d, 2H), 2.62 (t, 2H), 1.82 (t, 2H); 13C NMR (CDCl3) δ 173.4, 160.9, 160.6, 144.9, 142.8, 136.6, 130.8, 130.3, 129.9, 129.7, 129.6, 127.6, 122.7, 122.6, 116.9, 115.2, 114.5, 114.3, 67.0, 61.2, 60.6, 56.4, 51.9, 51.2, 42.7, 28.2.

1. temperatureAfter cooling
2. extractionextracted with EtOAc (3×25 mL)
3. washThe combined organic extracts were washed with brine (15 mL)
4. dry with materialdried over Na2SO4
5. concentrationconcentrated to an oil, which
6. customwas purified by flash chromatography (8:2 Hexanes/EtOAc)