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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1059876Generated: October 31, 2026

Hydrochloric Acid → HCID 178477486, compound

https://huagongshe.com/reaction/1059876

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantN-(4-methyl-5-(4-methylpyridin-2-yl)thiazol-2-yl)thioureaHCID 18667527—
SolventDimethylformamideHCID 6228—
SolventIodoethaneHCID 6340—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 178477486HCID 178477486—

Reaction Conditions

Temperature70 °C

Reaction Steps

To a suspension of N-(4-methyl-5-(4-methylpyridin-2-yl)thiazol-2-yl)thiourea (1.23 g) in N,N-dimethylformamide were added a solution of hydrogen chloride in 1,4-dioxane (4N, 2.56 ml) and iodoethane (1.86 ml), and the mixture was stirred at 70° C. for 4 hours. Ethyl acetate (100 ml) was added to the mixture, and the mixture was cooled. The precipitate was collected by filtration and purified by column chromatography (silica gel, triethylamine:methanol:dichloromethane=1:5:100) to give N-(4-methyl-5-(4-methylpyridin-2-yl)thiazol-2-yl)-S-ethylisothiourea (1.14 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06521643B1
Source datasetuspto-grants-2003_02
ORD IDord-8503a43dfb214506a4d440b086cbc0fc
Source noteuspto-grants-2003_02