3-Fluoro-4-(trifluoromethyl)benzaldehyde → HCID 45274410, compound

Participants

Reaction Steps

To a solution of N-azetidin-3-yl-2-[3,3-bis(4-fluorophenyl)-2-oxopyrrolidin-1-yl]acetamide (0.083 g, 0.215 mmol; Example 239A) in dichloromethane (5 mL) was added 3-fluoro-4-(trifluoromethyl)benzaldehyde (0.062 g, 0.323 mmol), sodium triacetoxyborohydride (0.088 g, 0.323 mmol) and a few drops of acetic acid. The reaction mixture was stirred at ambient temperature for 16 hours. The mixture was then diluted with dichloromethane and washed with saturated aqueous NaHCO3 solution. The separated organic layer was dried over MgSO4, concentrated, and purified by silica gel flash chromatography eluting with 5-10% methanol/dichloromethane. 1H NMR (300 MHz, CDCl3) δ ppm 7.54 (t, J=7.6 Hz, 1H), 7.28-7.33 (m, 4H), 7.12-7.16 (m, 2H), 6.98-7.05 (m, 4H), 6.30-6.37 (m, 1H), 4.40-4.59 (m, 1H), 3.99 (s, 2H), 3.54-3.66 (m, 4H), 3.50 (t, J=6.5 Hz, 2H), 2.77 (t, J=6.4 Hz, 4H); MS (ESI+) m/z 562 (M+H)+.

Provenance & Evidence