反应详情

2-{3-Fluoro-4-[(phenylmethyl)oxy]phenyl}-5-(methylsulfonyl)pyridine (0.168 g, 34%) was prepared as a white solid from 5-bromo-2-{3-fluoro-4-[(phenylmethyl)oxy]phenyl}pyridine (0.50 g, 1.40 mmol), methanesulfinic acid sodium salt (0.72 g, 80%, 5.58 mmol) Cul (0.80 g, 4.19 mmol), NaOH (67 mg, 1.68 mmol) and water (0.4 mL) in DMSO (15 mL) in a manner similar to Example 83, Step 2. The crude product was triturated with hot MeOH containing 5% of CHCl3. 1H NMR (400 MHz, CDCl3): δ 9.14 (d, 1H, J=2.4 Hz), 8.22 (dd, 1H, Ja=8.3 Hz, Jb=2.5 Hz), 7.91 (d, 1H, J=2.2 Hz), 7.90-7.70 (m, 2H), 7.50-7.30 (m, 5H), 7.11 (t, 1H, J=8.6 Hz), 5.23 (s, 2H), 3.13 (s, 3H); LRMS (ESI), m/z 358 (M+H).

1. customThe crude product was triturated with hot MeOH containing 5% of CHCl3