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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545228Generated: October 29, 2026

Phenylhydrazine → HCID 67171244, compound

https://huagongshe.com/reaction/545228

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenylhydrazineHCID 7516—
ReactantTriethylamineHCID 8471—
Reactant4-Chloro-2-(methylthio)pyrimidine-5-carboxylic acid ethyl esterHCID 80008—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67171244HCID 67171244—

Reaction Steps

60 mL of triethylamine was added to tetrahydrofuran (200 mL) solution of 25 g of ethyl 4-chloro-2-(methylthio)pyrimidine-5-carboxylate and 12.7 mL of phenylhydrazine, and stirred at room temperature for 18 hours. The solvent was concentrated under reduced pressure, water was added to the residue, then washed with ether, and made acidic with aqueous 5 N hydrochloric acid solution added thereto. The precipitated solid was taken out through filtration, and washed with water and 2-propanol to obtain 10.8 g of the entitled compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935708B2
Source datasetuspto-grants-2011_05
ORD IDord-ab77269b6af74996bb52dd11f2365420
Source noteuspto-grants-2011_05