反应详情

温度

-78 °C

To a solution of 5-Bromo-2-(2-pyrrolidin-1-ylethoxy)pyridine (7.0 g, 26 mmol) in dry THF (50 mL) at -78° C. was added n-BuLi (2.5 M in hexanes, 12.4 mL, 31.0 mmol) dropwise. After 30 min, 6-methoxy-1-tetralone (4.55 g, 25.8 mmol) in dry THF was added. After stirring for 15 min at -78° C., the reaction was allowed to warm to room temperature. After 30 min, the reaction was poured into aq NaHCO3 (satd). The aqueous layer was extracted with EtOAc (2×). The combined organic solutions were dried (MgSO4), filtered, and concentrated. Flash chromatography (CHCl3 :MeOH, 95:5) provided the alcohol (4.23 g, 44%) as a white solid. 1H NMR (250 MHz, CDCl3): δ8.07 (d, J=2.5 Hz, 1H), 7.49 (dd, J=2.5, 8.7 Hz, 1H), 7.00 (d, J=8.5 Hz, 1H), 6.73 (m, 3H), 4.45 (t, J=5.7 Hz, 2H), 3.79 (s, 3H), 2.92 (t, J=5.7 Hz, 2H), 2.76 (m, 2H), 2.67 (m, 4H), 2.11 (s, 1H), 2.08 (m, 3H), 1.82 (m, 5H).

1. temperatureto warm to room temperature
2. waitAfter 30 min
3. extractionThe aqueous layer was extracted with EtOAc (2×)
4. dry with materialThe combined organic solutions were dried (MgSO4)
5. filtrationfiltered
6. concentrationconcentrated