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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1059994Generated: November 3, 2026

Hydrochloric Acid → HCID 178477464, compound

https://huagongshe.com/reaction/1059994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 18631029HCID 18631029—
SolventDimethylformamideHCID 6228—
SolventIodoethaneHCID 6340—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 178477464HCID 178477464—

Reaction Steps

To a suspension of N-(5-(4-methoxypyridin-2-yl)-2-methylphenyl)-thiourea (0.15 g) in N,N-dimethylformamide (3 ml) were added a solution of hydrogen chloride in 1,4-dioxane (4N, 0.274 ml) and iodoethane (0.22 ml), and the mixture was stirred at ambient temperature for 5 hours. Ethyl acetate (100 ml) was added to the mixture, and the mixture was cooled. The precipitate was collected by filtration. The precipitate was dissolved in water, and to the solution was added a saturated aqueous sodium hydrogencarbonate solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate and evaporated under reduced pressure. The residue was dissolved in ethyl acetate, and to the solution was added a solution of hydrogen chloride in 1,4-dioxane (4N, 0.5 ml). The precipitate was collected by filtration and dried under reduced pressure to give N-(5-(4-methoxypyridin-2-yl)-2-methylphenyl)-S-ethylisothiourea dihydrochloride (168 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06521643B1
Source datasetuspto-grants-2003_02
ORD IDord-2ec101e14db14eedb6522ccc5e421b82
Source noteuspto-grants-2003_02