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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 473259Generated: October 30, 2026

Potassium Iodide → HCID 57811380, compound

https://huagongshe.com/reaction/473259

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium IodideHCID 4875—
ReactantPropanoic acid, 2-bromo-2-methyl-, ethyl esterHCID 11745—
ReactantHCID 178509206HCID 178509206—
SolventDimethylformamideHCID 6228—
ProductHCID 57811380HCID 5781138027.3%

Reaction Conditions

Temperature70 °C

Reaction Steps

Ethyl 2-bromo-2-methylpropanoate (184 μL, 1.239 mmol) was added to a solution of 5-amino-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazole-3-thiol (0.35 g, 1.239 mmol) in DMF (2.5 mL) and heated at 60° C. for 20 hours after which time a few crystals of potassium iodide were added and the mixture heated at 70° C. for a further 24 h. The temperature was then increased to 90° C. and the mixture heated for an additional 6 days. The mixture was allowed to cool to room temperature, concentrated and dissolved in dichloromethane. Triethylamine and water were added and the layers separated. The aqueous layer was extracted with dichloromethane (2×) and the combined organic extracts dried over NaSO4, filtered, concentrated and purified by column chromatography (ethyl acetate) to afford ethyl 2-(5-amino-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)-2-methylpropanoate as a tan solid (0.134 g, 27%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08633232B2
Source datasetuspto-grants-2014_01
ORD IDord-182f0c15f38349ebae21bbf9485193f7
Source noteuspto-grants-2014_01