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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 575605Generated: October 31, 2026

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

https://huagongshe.com/reaction/575605

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 numberUS09034900B2
Source datasetuspto-grants-2015_05
ORD IDord-8eb05e3adb2340fb8739b29553559388
Source noteuspto-grants-2015_05