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) (0.7 g, 0.002 mol) in DMF (10 mL), was added 2-fluoro-3-(trifluoromethyl)benzyl bromide (0.5 g, 0.002 mol) and powdered 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 0.84 g in 72% yield. 1H NMR (CDCl3) δ 7.35 (t, 1H), 7.17 (m, 12H), 6.85 (t, 2H), 6.63 (s, 1H), 6.59 (t, 1H), 4.16 (t, 1H), 3.69 (s, 3H), 3.68 (s, 2H), 3.63 (t, 2H), 3.57 (d, 2H), 3.10 (d, 2H), 2.67 (t, 2H), 1.82 (t, 2H). 13C NMR (CDCl3) δ 173.4, 160.4, 144.8, 136.6, 130.8, 130.8, 129.7, 129.6, 129.4, 127.7, 126.8, 124.9, 123.1, 122.8, 116.8, 114.5, 66.3, 61.4, 53.5, 52.4, 51.8, 51.1, 42.7, 28.3.

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