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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 220612Generated: October 30, 2026

Ethyl pyruvate → HCID 5255543, compound

https://huagongshe.com/reaction/220612

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl pyruvateHCID 12041—
ReactantSodium BicarbonateHCID 516892—
Reactant(4-Chloro-2-methylphenyl)hydrazineHCID 587842—
SolventAcetic AcidHCID 176—
ProductHCID 5255543HCID 525554397%

Reaction Conditions

Temperature35 °C

Reaction Steps

To a stirred solution of 0.55 g (2.85 mmol) of (4-chloro-2-methyl-phenyl)-hydrazine in acetic acid (5 ml), was added 0.34 g (2.91 mmol) of ethyl pyruvate. The mixture was stirred 2 hours at 35° C., poured onto an aqueous solution of sat. NaHCO3 and then extracted with ethyl acetate. The combined organic phases were dried over Na2SO4 and concentrated in vacuo, to afford 0.702 g (97%) of 2-[(4-chloro-2-methyl-phenyl)-hydrazono]-propionic acid ethyl ester as a light orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08202993B2
Source datasetuspto-grants-2012_06
ORD IDord-387420b2b98944628f85956801f0c956
Source noteuspto-grants-2012_06