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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1915581Generated: October 26, 2026

Diethyl phenylmalonate → HCID 178437549, compound

https://huagongshe.com/reaction/1915581

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl phenylmalonateHCID 66514—
Reactant5-ethyl-1H-1,2,4-triazol-3-amineHCID 1714204—
SolventTributylamineHCID 7622—
SolventSodium HydroxideHCID 14798—
ProductHCID 178437549HCID 178437549—

Reaction Steps

A solution of 5.00 g 3-amino-5-ethyl-1,2,4-triazole and 15.00 g diethyl phenylmalonate in 18 ml N,N-dibutylbutan-1-amine is stirred at 185° C. over night. The solution is diluted with 5N NaOH solution, the resulting mixture is stirred for 30 min. The aqueous layer is washed with diethylether, acidified at 0° C. with concentrated HCl until precipition of the product is complete. The precipitate is collected by filtration to yield the product, which is used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08614218B2
Source datasetuspto-grants-2013_12
ORD IDord-9913a0d116bd47a9bdd4308f55f47dd5
Source noteuspto-grants-2013_12