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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80049Generated: October 24, 2026

Potassium Carbonate → 1-Benzo[b]thiophen-2-yl-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one

https://huagongshe.com/en/reaction/80049

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1,2-Diaminocyclohexane, trans-HCID 43806—
Reactant2-Bromobenzo(b)thiopheneHCID 94786—
Reactant1-(4-Methylpyridin-3-yl)imidazolidin-2-oneHCID 59636170—
CatalystCopper iodideHCID 83717—
Solvent1,4-DioxaneHCID 31275—
Product1-Benzo[b]thiophen-2-yl-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-oneHCID 4987196462.5%

Reaction Steps

Using the same reaction conditions as in Example 14, 1-(4-methyl-pyridin-3-yl)-imidazolidin-2-one (I-14b: 109.25 mg, 0.6171 mmol) was reacted with 2-bromo-benzo[b]thiophene (150 mg, 0.6171 mmol), 1,4-dioxane (5 mL), copper iodide (11.75 mg, 0.06171 mmol), trans-1,2-diamino cyclohexane (21.19 mg, 0.1851 mmol) and potassium carbonate (170.62 mg, 1.2342 mmol) to afford the crude product. Purification by column chromatography on silica gel (1% MeOH in chloroform) afforded 75 mg of the product (62.5% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-6e141d916d7946ec8d449faa28b60305
Source noteuspto-grants-2014_09