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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2383755Generated: October 25, 2026

Potassium Carbonate → 1-(3,4-Difluoro-phenyl)-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one

https://huagongshe.com/reaction/2383755

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1,2-Diaminocyclohexane, trans-HCID 43806—
Reactant4-Bromo-1,2-difluorobenzeneHCID 67675—
Reactant1-(4-Methylpyridin-3-yl)imidazolidin-2-oneHCID 59636170—
CatalystCopper iodideHCID 83717—
Solvent1,4-DioxaneHCID 31275—
Product1-(3,4-Difluoro-phenyl)-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-oneHCID 4987205384.01%

Reaction Steps

Using the same reaction conditions as in Example 14, 1-(4-methyl-pyridin-3-yl)-imidazolidin-2-one (I-14b: 150 mg, 0.8474 mmol) was reacted with 4-bromo-1,2-difluoro-benzene (163.5 mg, 0.8474 mmol), 1,4-dioxane (5 mL), copper iodide (16.14 mg, 0.08474 mmol), trans-1,2-diamino cyclohexane (29.10 mg, 0.253942 mmol) and potassium carbonate (234.3 mg, 1.6948 mmol) to afford the crude product. Purification by column chromatography on silica gel (1% MeOH in CHCl3) afforded 205 mg of the product (84.01% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08263635B2
Source datasetuspto-grants-2012_09
ORD IDord-aed6f5e4d5704507a084bb27f3e8418b
Source noteuspto-grants-2012_09