Pyridine → Methyl 1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxylate

Participants

Reaction Steps

To a mixture of methyl 2-oxo-1,2-dihydropyridine-3-carboxylate (6.0 g, 39 mmol), 4-fluorophenylboronic acid (16.3 g, 116 mmol), cupric acetate (14 g, 78 mmol) and pyridine (12 g, 0.156 mol) in DCM (300 mL) is added 4 Å molecular sieves (5 g). The reaction mixture is stirred at RT overnight open to air. After the solids are filtered and washed with water, the filtrate is extracted with DCM (100 mL). The organic layer is dried over MgSO4 and concentrated. The residue is purified by silica gel column chromatography eluting with PE:DCM (2:1 to 0:1) to give the product (9.6 g, 100% yield). MS (m/z): 248.0 (M+H).

Provenance & Evidence