Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80087Generated: October 26, 2026

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

https://huagongshe.com/reaction/80087

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-Diaminocyclohexane, trans-HCID 43806—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant1-Bromo-2,4-difluorobenzeneHCID 67674—
Reactant1-(4-Methylpyridin-3-yl)imidazolidin-2-oneHCID 59636170—
CatalystCopper iodideHCID 83717—
Solvent1,4-DioxaneHCID 31275—
Product1-(2,4-Difluoro-phenyl)-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-oneHCID 5963621861.2%

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 1-bromo-2,4-difluoro-benzene (0.114 mL, 1.0169 mmol), 1,4-dioxane (20 mL), copper iodide (16 mg, 0.08474 mmol), trans-1,2-diamino cyclohexane (29.4 mg, 0.254 mmol) and potassium phosphate (449.7 mg, 2.118 mmol) to afford the crude product. Purification by column chromatography on silica gel (2% MeOH in CHCl3) afforded 150 mg of the product (61% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-6d6c0fc43c1a471e8512af85e6a354ad
Source noteuspto-grants-2014_09