Trifluoroacetic acid → HCID 29553240, compound

Participants

Reaction Conditions

Reaction Steps

In a round bottom flask, 5-bromo-pyridin-2-ylamine (38, 4.05 g g, 23.4 mmol) was combined with 70.0 mL of acetonitrile, 2-fluoro-benzaldehyde (39, 2.45 mL, 23.4 mmol), triethylsilane (20.0 mL, 125 mmol) and trifluoroacetic acid (10.0 mL, 130 mmol). The reaction was stirred at 80° C. for 3 hours. The reaction was poured into aqueous potassium carbonate and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material was purified by silica gel column chromatography eluting with 20-60% ethyl acetate in hexane. Appropriate fractions were combined and the solvents removed under vacuum to provide the desired compound (40, 5.0 g).

Provenance & Evidence