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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2207878Generated: October 25, 2026

Malonic Acid → 3-(3-Bromo-4-fluorophenyl)-2-propenoic acid

https://huagongshe.com/reaction/2207878

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalonic AcidHCID 867—
ReactantPiperidineHCID 8082—
Reactant3-Bromo-4-fluorobenzaldehydeHCID 173604—
SolventPyridineHCID 1049—
Product3-(3-Bromo-4-fluorophenyl)-2-propenoic acidHCID 68831154.7%

Reaction Conditions

Temperature100 °C

Reaction Steps

3-Bromo-4-fluoro-benzaldehyde (5.0 g, 24.6 mmol), malonic acid (5.6 g, 53.7 mmol), and piperidine (0.5 mL, 4.9 mmol) were added to pyridine (11.4 mL). The reaction mixture was stirred at 100° C. for 3 hours and then concentrated under reduced pressure. Distilled water was added to the reaction mixture, which was then filtered. The resulting solid was recrystallized from ethanol to give 3.3 g of the titled compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09376420B2
Source datasetuspto-grants-2016_06
ORD IDord-d292ac838ee14bf5a46b97a9cfb067ee
Source noteuspto-grants-2016_06