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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 127298Generated: October 26, 2026

Ethanol → Phenylpyruvic acid 3,4-dichlorophenylhydrazone

https://huagongshe.com/reaction/127298

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant(3,4-Dichlorophenyl)hydrazine monohydrochlorideHCID 3084323—
ReactantSodium phenylpyruvate monohydrateHCID 23666336—
SolventWaterHCID 962—
ProductPhenylpyruvic acid 3,4-dichlorophenylhydrazoneHCID 86737587—

Reaction Steps

Add 21.0 g of sodium β-phenylpyruvate monohydrate and 21.3 g of 3,4-dichlorophenylhydrazine hydrochloride to 300 ml of ethanol and reflux the resulting mixture for 30 minutes. Cool, add water, collect and dry the solid to yield phenylpyruvic acid 3,4-dichlorophenylhydrazone, m.p. 166°-167°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04255442
Source datasetuspto-grants-1981_03
ORD IDord-100280779c1043beb3ff7c579af99199
Source noteuspto-grants-1981_03