反应详情

(6-Fluoropyridin-3-yl)(4-(methylthio)phenyl)methanol (Example 103) (1.5304 g, 6.1387 mmol) was dissolved in DCM (60 mL) and manganese(IV) oxide (Aldrich less than 5 micron, activated, 2.546 g, 29.28 mmol) was added. The reaction was stirred at room temperature for 90 minutes, and then more activated manganese (IV) oxide (2.736 g, 31.47 mmol) was added. The reaction was stirred overnight and then was filtered through a Celite® (diatomaceous earth) pad, which was washed with DCM. The filtrate was concentrated, and dried under high vacuum to give (6-fluoropyridin-3-yl)(4-(methylthio)phenyl)methanone (1.334 g). 1H NMR (CDCl3, 400 MHz) δ 8.64 (d, J=2.35 Hz, 1H), 8.26 (td, J=8.07 Hz, 2.45 Hz, 1H), 7.75 (d, J=8.61 Hz, 2H), 7.33 (d, J=8.41 Hz, 2H), 7.09 (dd, J=8.41 Hz, 2.54 Hz, 1H), 2.56 (s, 3H). m/z (ESI, pos. ion) 248 (M+H)+.

1. stirringThe reaction was stirred overnight
2. filtrationwas filtered through a Celite® (diatomaceous earth) pad, which
3. washwas washed with DCM
4. concentrationThe filtrate was concentrated
5. customdried under high vacuum