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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 539124Generated: October 30, 2026

Iodoethane → 3-Bromo-1-ethyl-2(1H)-pyridinone

https://huagongshe.com/reaction/539124

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodoethaneHCID 6340—
ReactantCesium carbonateHCID 10796—
ReactantHCID 178517701HCID 178517701—
SolventDimethylformamideHCID 6228—
Product3-Bromo-1-ethyl-2(1H)-pyridinoneHCID 1221053978%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 3-bromopyridin-2-ol (1.0 g, 5.75 mmol) in DMF (6 mL) was treated with cesium carbonate (1.87 g, 5.75 mmol) and ethyl iodide (1.38 mL, 17.2 mmol). The mixture was heated at 80° C. for 4 hours. The solvent was concentrated and the residue taken in EtOAc, washed with brine, dried (phase separator silicone treated filter paper), concentrated and purified on silica gel (1:2 hexane/ether) to provide 3-bromo-1-ethylpyridin-2(1H)-one (0.905 g, 78% yield) as a yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08865726B2
Source datasetuspto-grants-2014_10
ORD IDord-6530cf86fe2b4a1f8d0ad66752c60f8d
Source noteuspto-grants-2014_10