Potassium Carbonate → HCID 21906430, compound

Participants

Reaction Steps

A solution of 1-(4-pyridyl)piperidine-4-methylamine (1.13 g, 5.92 mmol) and potassium carbonate (816 mg, 5.92 mmol) in dimethyl sulfoxide (12 mL) was treated with methyl 2-fluoro-5-nitrobenzoate (1.18 g, 5.92 mmol). After 17 h, the mixture was cooled, diluted with EtOAc, and filtered. The filtrate was concentrated and partitioned between EtOAc and 10% HCl. The aqueous layer was washed with EtOAc (1×), pH adjusted (>10) by addition of NaOH, and washed with EtOAC (3×). The combined extracts were washed with H2O (5×), brine, dried (sodium sulfate), and concentrated. The residue was purified by column chromatography (SiO2, 1 to 3% [2 N NH3 in MeOH]:chloroform) yielding 920 mg (42%) of the title compound.

Provenance & Evidence