反应详情

温度

100 °C

A mixture of 1-(4-hydroxy-2,6-dimethylphenyl)ethanone (4-2, 2.15 g, 13.1 mmol), 2-chloropyrimidine (1.00 g, 8.73 mmol), copper (55.0 mg, 0.87 mmol), and potassium carbonate (3.62 g, 26.2 mmol) in 17.5 mL of DMF was stirred at 100° C. for 3.0 h. The reaction mixture was cooled to room temperature, added with water, and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous MgSO4(s), and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (50% EtOAc in hexanes as eluant) to give 1-(2,6-dimethyl-4-(pyrimidin-2-yloxy)phenyl)ethanone (6-1, 1.16 g) as white solids in 55% yield: 1H NMR (500 MHz, CDCl3) δ 8.58 (d, J=4.5 Hz, 2 H), 7.05 (t, 1 H), 6.87 (s, 2 H), 2.49 (s, 3 H), 2.27 (s, 6 H).

1. temperatureThe reaction mixture was cooled to room temperature
2. extractionextracted with ethyl acetate
3. washThe organic layer was washed with brine
4. dry with materialdried over anhydrous MgSO4(s)
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by column chromatography on silica gel (50% EtOAc in hexanes as eluant)