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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2410506Generated: November 3, 2026

Potassium Carbonate → 1251459-19-4

https://huagongshe.com/reaction/2410506

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl 4-bromobutyrateHCID 76300—
Reactant5-Bromo-2,3-DifluorophenolHCID 2773307—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product1251459-19-4HCID 6667864491%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 5-bromo-2,3-difluorophenol (Avocado, 2.5 g, 12.0 mmol) in DMF (50 mL) was added ethyl 4-bromobutyrate (2.57 g, 13.2 mmol) and K2CO3 (2.5 g, 18 mmol). The reaction mixture was heated at 80° C. for 3 hours. The reaction mixture was diluted with EtOAc and washed with water (3×) and brine, dried (MgSO4) and concentrated under vacuum affording the title compound as a colorless oil (3.53 g, 91%). 1H NMR (DMSO-d6, 300 MHz) δ 7.36 (m, 1H), 7.28 (m, 1H), 4.16-4.03 (m, 4H), 2.45 (t, 2H), 2.03-1.94 (m, 2H), 1.18 (t, 3H). LC/MS (Method B): 323.1, 325.0 (M+H)+. HPLC (Method A) Rt 4.94 min (Purity: 99.8%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815919B2
Source datasetuspto-grants-2014_08
ORD IDord-a51e70d2561a4338812df1219fdcead7
Source noteuspto-grants-2014_08