反应详情

A solution of 2-bromo-N-(3-iodophenyl)acetamide (2.67 g, 7.83 mmol), 1H-imidazole-2-carbaldehyde (0.752 g, 7.83 mmol) and DIPEA (10 mL) in DMF (20 mL) was stirred at 80° C. for 4 hrs. The solvent was evaporated under reduced pressure to afford a residue, which was purified by Biotage eluting with DCM in hexanes to 10% MeOH in DCM to give 2-(2-formyl-1H-imidazol-1-yl)-N-(3-iodophenyl)acetamide (2.60 g, 94%). 1H NMR (400 MHz, DMSO) 9.64 (s, 1H), 8.17 (brs, 1H), 8.04 (s, 1H), 7.60 (s, 1H), 7.46 (d, J=8.4 Hz, 1H), 7.40 (d, J=8.0 Hz, 1H), 7.28 (s, 1H), 7.10 (t, J=8.0 Hz, 1H), 5.23 (s, 2H).

1. customThe solvent was evaporated under reduced pressure
2. customto afford a residue, which
3. customwas purified by Biotage
4. washeluting with DCM in hexanes to 10% MeOH in DCM