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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80199Generated: October 30, 2026

1,2-Diaminocyclohexane, trans- → 1-(Isothiazol-4-yl)-3-(4 ethylpyridin-3-yl)imidazolidin-2-one

https://huagongshe.com/reaction/80199

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-Diaminocyclohexane, trans-HCID 43806—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant4-Bromo-isothiazoleHCID 5200358—
Reactant1-(4-Methylpyridin-3-yl)imidazolidin-2-oneHCID 59636170—
CatalystCopper iodideHCID 83717—
Solvent1,4-DioxaneHCID 31275—
Product1-(Isothiazol-4-yl)-3-(4 ethylpyridin-3-yl)imidazolidin-2-oneHCID 68788713172.2%

Reaction Steps

Using the same reaction conditions as described in example 14, 1-(4-methyl-pyridin-3-yl)-imidazolidin-2-one (I-14b: 150 mg, 0.847 mmol) was reacted with 4-bromo-isothiazole (166 mg, 1.016 mmol), 1,4-dioxane (15 mL), copper iodide (16.09 mg, 0.0847 mmol), trans-1,2-diamino cyclohexane (29 mg, 0.254 mmol) and potassium phosphate (540 mg, 2.541 mmol) to afford the crude product. Purification by column chromatography on silica gel (2% MeOH in CHCl3) afforded 120 mg of the product (54.54% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-550eade37b7a4fcfbd1733b8d6a6c462
Source noteuspto-grants-2014_09