反应详情

To a solution of 0.63 g (3.36 mmol) of 2-phenoxyphenol and 0.62 g (4.48 mmol) of K2CO3 in 75 mL acetone at ambient temperature was added 1.00 g (2.24 mmol) of 1-(4-bromo-2-fluorobenzyl)-2-(n-propyl)-4-ethyl-5-bromoacetyl-1H-imidazole obtained from Part B of Example 11 in 25 mL acetone. After stirring at reflux overnight, the reaction mixture was poured into water and extracted with 3×100 mL ethyl acetate. The combined organic layers were washed with brine, dried over MgSO4, filtered, and the solvents evaporated under reduced pressure. The crude product was purified by flash column chromatography using 10-40% ethyl acetate in hexane, which provided 0.16 g (6.3%) of a clear oil after evaporation of solvents under reduced pressure. 1H NMR (300 MHz, CDCl3): δ 0.95 (t, 3H, J=7.3 Hz); 1.29 (t, 3H, J =7.3 Hz); 1.66 (m, 2H); 2.60 (m, 2H); 2.81 (q, 2H, J=7.3 Hz); 5.00 (s, 2H); 6.38 (t, 1H, J=7.8 Hz); 6.89-7.29 (m, 10H). ##STR106##

1. temperatureat reflux overnight
2. extractionextracted with 3×100 mL ethyl acetate
3. washThe combined organic layers were washed with brine
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. customthe solvents evaporated under reduced pressure
7. customThe crude product was purified by flash column chromatography