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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 518335Generated: November 1, 2026

Water → 5-Bromo-3-fluoro-1-methylpyridin-2(1H)-one

https://huagongshe.com/reaction/518335

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
Reactant5-Bromo-3-fluoro-1,2-dihydropyridin-2-oneHCID 178517594—
SolventDimethylformamideHCID 6228—
Product5-Bromo-3-fluoro-1-methylpyridin-2(1H)-oneHCID 7070103093.3%

Reaction Steps

A mixture of 5-bromo-3-fluoropyridin-2-ol (1 g, 5.2 mmol), iodomethane (356 mg, 5.7 mmol) and K2CO3 (1.4 g, 10.4 mmol) in DMF (10 mL) was stirred at rt for 12 h. The mixture was treated with water (70 ml) and extracted with EtOAc (3×50 ml). The combined organic extracts were washed with saturated bicarbonate solution (aq), dried over sodium sulfate, filtered and concentrated in vacuo to afford the title compound (1 g, 93%) as a white solid which was carried forward without purification. LCMS (M+H)+=207.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09115114B2
Source datasetuspto-grants-2015_08
ORD IDord-e3332fcd5e04444ca143d62b00985c16
Source noteuspto-grants-2015_08