Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 579371Generated: October 30, 2026

Water → 3-Bromo-1-methyl-1,2-dihydroquinolin-2-one

https://huagongshe.com/reaction/579371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178517115HCID 178517115—
SolventDimethylformamideHCID 6228—
Product3-Bromo-1-methyl-1,2-dihydroquinolin-2-oneHCID 26831597.9%

Reaction Steps

To a solution of 3-bromo-2-hydroxyquinoline (50 mg, 0.223 mmol) in DMF (1 mL) was added methyl iodide (0.017 mL, 0.268 mmol) and potassium carbonate (46.3 mg, 0.335 mmol.) at room temperature. The reaction mixture was stirred for 16 hours at room temperature. Water was added and the solution was extracted with ethyl acetate. The organic layer was washed with water then aqueous saturated sodium chloride solution. The organic layer was dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting residue was purified by silica gel column chromatography (developing solvent: hexane/ethyl acetate=/1) to give 3-bromo-1-methylquinolin-2(1H)-one (52 mg, MS: 238.1 [M+H+].)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040712B2
Source datasetuspto-grants-2015_05
ORD IDord-4fe1d142d4924fd0becc8e46c51c5a81
Source noteuspto-grants-2015_05