Dimethylformamide → HCID 2756999, compound

Participants

Reaction Steps

6-Bromo-2-(4-fluorophenyl)imidazo[1,2-a]pyridine (7 g, 0.024 moles) was treated with phosphorous oxychloride (3.4 mL, 36 mmol) in N,N-dimethylformamide in a similar manner as described in Example 2 to give, after recrystallization from acetonitrile, 6-bromo-2-(4-fluorophenyl)imidazo[1,2-a]pyridine-3-carbaldehyde (6.12 g, 80%) as a white solid. 1H NMR (CDCl3): δ 10.08 (s, 1H), 9.88 (s, 1H), 7.86 (q, 2H), 7.72 (m, 2H), 7.28 (t, 2H); 19F NMR (CDCl3) δ −110.6; MS m/z 320 (M+1).

Provenance & Evidence