Trifluoroacetic acid → HCID 975849, compound

Participants

Reaction Steps

To 2-amino-5-bromopyridine (54, 6.10 g, 0.0352 mol) in toluene (90.0 mL) were added 4-chlorobenzaldehyde (55, 5.00 g, 0.0356 mol), trifluoroacetic acid (8.0 mL, 0.10 mol) and triethylsilane (16.5 mL, 0.103 mol). The reaction was heated to reflux for 48 hours. The reaction was concentrated, poured into aqueous potassium carbonate and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate and concentrated. The crude residue was crystallized with ethyl acetate to give compound (56, 6.8 g, 65.4%).

Provenance & Evidence