反应详情

温度

70 °C

Add 1-(4-(4-(bromomethyl)benzyloxy)-3-chloro-2-hydroxyphenyl)ethanone (180 mg, 0.487 mmol) and 3-(3-hydroxyisoxazol-5-yl)phenylboronic acid (218 mg, 1.06 mmol) to a 2.0 M solution of Na2CO3 in water (2.36 mL), dimethoxyethane (4.72 mL), and n-PrOH (4.72 mL). Degas the solution. Add tetrakis(triphenylphosphine)palladium (0) (123 mg, 0.106 mmol) and degas the mixture. Heat the mixture at 70° C. for 12 h. Quench the reaction with water. Extract with EtOAc. Dry, filter and concentrate. Purify the residue by flash chromatography on silica gel afforded the title compound (12 mg, 5%): 1H NMR (d6-DMSO) δ 2.61 (s, 3H), 4.02 (s, 2H), 5.31 (s, 2H), 6.51 (s, 1H), 6.89 (d, J=9.0 Hz, 1H), 7.31-7.36 (m, 3H), 7.39-7.44 (m, 3H), 7.62 (d, J=7.8 Hz, 1H), 7.70 (s, 1H), 7.93 (d, J=9.4 Hz, 1H), 11.34 (s, 1H), 13.13 (s, 1H); MS (APCI-neg mode) m/z (rel intensity): 448 (M−H, 100%).

1. customDegas the solution
2. customQuench
3. customthe reaction with water
4. extractionExtract with EtOAc
5. customDry
6. filtrationfilter
7. concentrationconcentrate
8. customPurify the residue by flash chromatography on silica gel