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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2207936Generated: October 31, 2026

Pyruvic Acid → HCID 131735961, compound

https://huagongshe.com/reaction/2207936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyruvic AcidHCID 1060—
ReactantSodium HydroxideHCID 14798—
Reactant4-Bromo-3-fluorobenzaldehydeHCID 2783411—
SolventEthanolHCID 702—
ProductHCID 131735961HCID 13173596147.6%

Reaction Steps

A solution of pyruvic acid (1.9 mL, 27.1 mmol) in ethanol (6.0 mL) was added to a 0.5 M sodium hydroxide solution (74.0 mL). The reaction mixture was stirred at room temperature for 5 minutes and then a solution of 4-bromo-3-fluorobenzaldehyde (5.0 g, 24.6 mmol) in ethanol (20.0 mL) was slowly added thereto at room temperature for 1 hour. The reaction mixture was stirred at room temperature for 18 hours and then filtered. The resulting solid washed with ethyl acetate, diluted with a 1N hydrochloric acid solution and then extracted with ethyl acetate. The extract was washed with distilled water and brine, dried on anhydrous magnesium sulfate, and then concentrated under reduced pressure to give 3.2 g of the titled compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09376420B2
Source datasetuspto-grants-2016_06
ORD IDord-4ba4e1e6cd634044aa03bbb744e35b68
Source noteuspto-grants-2016_06