反应详情

Compound 5 (300 mg, 8.05 mmol) was dissolved in EtOAc (15 mL). Pd/C (100 mg, 10%) was added. The flask was charged with hydrogen gas (vacuum, H2, vacuum, H2) and the mixture was stirred overnight at room temperature. The crude mixture was filtered through a pad of celite (eluated with 40 mL of EtOAc) and the solvent was evaporated under reduced pressure to yield 230 mg, 99% of 6. 1H-NMR (CDCl3) δ 7.37 (td, 1H, J=8.0 Hz and 1.7 Hz), 7.25-7.17 (m, 1H), 7.19 (d, 2H, J=8.7 Hz), 7.16-7.11 (m, 1H), 7.00-6.93 (m, 1H), 6.78 (d, 2H, J=8.2 Hz), 2.82-2.72 (m, 2H), 2.67-2.56 (m, 2H), 2.51-2.37 (m, 4H), 1.43 (s, H2O/OH); 13C-NMR (CDCl3) δ 211.9, 161.4 (d, J=248 Hz), 154.2, 136.7, 132.9 (d, J=10.8 Hz), 128.7 (d, J=8.8 Hz), 128.3 (d, J=5.0 Hz), 127.9 (d, 2C, J=1.1 Hz), 124.1 (d, J=3.5 Hz), 117.0 (d, J=24.2 Hz), 115.3 (2C), 44.2 (d, J=2.7 Hz), 38.5 (2C), 35.5 (d, 2C, J=4.6 Hz); 19F-NMR (CDCl3) δ−108.6 (m).

1. filtrationThe crude mixture was filtered through a pad of celite (eluated with 40 mL of EtOAc)
2. customthe solvent was evaporated under reduced pressure