反应详情

4-[6-(Methylsulfonyl)-3-pyridinyl]phenol was prepared as a brown solid from (4-hydroxyphenyl)boronic acid (0.34 g, 2.40 mmol), 5-bromo-2-(methylsulfonyl)pyridine (0.54 g, 2.29 mmol), 2M Na2CO3 (15 mL) and Pd(PPh3)4 (25 mg, 0.02 mmol) in DME (5 mL) in a manner similar to Example 1, Step 1. The crude product was triturated with 1:1 CH2Cl2/hexane to give 0.45 g (79%) of 4-[6-(methylsulfonyl)-3-pyridinyl]phenol as a brown solid. 1H NMR (400 MHz, DMSO-d6): δ 9.88 (s, 1H), 9.01 (d, 1H, J=2.2 Hz), 8.30 (dd, 1H, Ja=8.3 Hz, Jb=2.2 Hz), 8.02 (d, 1H, J=8.3 Hz), 7.66 (d, 2H, J=8.8 Hz), 6.90 (d, 2H, J=8.5 Hz), 3.27 (s, 3H); LRMS (APCI), m/z 250 (M+H).

1. customThe crude product was triturated with 1:1 CH2Cl2/hexane