Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 254323Generated: November 2, 2026

Potassium Carbonate → 2-Bromo-1-(3,5-difluoro-2-nitrophenyl)-4-methyl-1H-imidazole

https://huagongshe.com/reaction/254323

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1,3,5-Trifluoro-2-nitrobenzeneHCID 67567—
ReactantHCID 178430836HCID 178430836—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product2-Bromo-1-(3,5-difluoro-2-nitrophenyl)-4-methyl-1H-imidazoleHCID 5773245354%

Reaction Steps

A mixture of 1,3,5-trifluoro-2-nitrobenzene (2.2 mL, 18.6 mmol), 2-bromo-4-methylimidazole (3 g, 18.6 mmol) and K2CO3 (5.66 g, 41 mmol) in 80 mL DMF was stirred at room temperature overnight. The mixture was diluted with ethyl acetate and washed with water. Standard work up procedure followed by column purification using 10% ethyl acetate in dichloromethane as eluent provided 3.18 g (54% yield) of the product as a yellow powder. EIMS 317.9 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07875618B2
Source datasetuspto-grants-2011_01
ORD IDord-d7379ae71e1d430ea48eb0bfccc2630d
Source noteuspto-grants-2011_01