Triethylamine → 3-Fluoro-4-(5-(piperidin-1-yl)benzofuran-2-yl)benzaldehyde

Participants

Reaction Steps

A mixture of 5-(piperidin-1-yl)benzofuran-2-ylboronic acid (50 mg, 0.204 mmol), 4-bromo-3-fluorobenzaldehyde (37 mg, 0.184 mmol), triethylamine (0.56 mL, 4.1 mmol) and bis(triphenylphosphine)palladium(II)chloride (14 mg, 0.02 mmol) in ethanol (5 mL) was irradiated in a microwave instrument at 100° C. for 20 min. The reaction mixture was cooled, and the solvent was removed. The residue was purification by silica gel chromatography on ISCO system yielding the title compound (15 mg, 15% yield). ESI-MS: 324.2 (M+H)+, 1H NMR (400 MHz, CDCl3) δ 10.00 (s, 1H), 8.19 (t, 1H), 7.75 (d, 1H), 7.67 (d, 1H), 7.43 (d, 1H), 7.35 (d, 1H), 7.14-7.11 (m, 2H), 3.13 (m, 4H), 1.77 (m, 4H), 1.59 (m, 2H).

Provenance & Evidence