Methyl 6-formylnicotinate

56026-36-9

10165-86-3

General procedure for the synthesis of methyl 6-formylnicotinate from methyl 6-hydroxymethylnicotinate: a mixture of methyl 6-hydroxymethylnicotinate (7 g, 37 mmol) and manganese dioxide (32.3 g, 372 mmol) in dichloromethane (200 mL) was stirred and reacted for 4 hours at 20°C. After completion of the reaction, the mixture was filtered and the filtrate was concentrated. The residue was purified by silica gel column chromatography (petroleum ether/ethyl acetate = 5/1) to afford methyl 6-formylnicotinate (6 g, 97% yield). Mass spectral data: MS-ESI (m/z): 166.2 ([M + H]+) (LC-MS method C; retention time: 0.36 min).