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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2100722Generated: October 31, 2026

Hydrochloric Acid → 3-(4-Fluoro-3-methoxyphenyl)prop-2-enoic acid

https://huagongshe.com/reaction/2100722

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMalonic AcidHCID 867—
Reactant4-Fluoro-3-methoxybenzaldehydeHCID 2737358—
SolventPyridineHCID 1049—
SolventPiperidineHCID 8082—
Product3-(4-Fluoro-3-methoxyphenyl)prop-2-enoic acidHCID 5340431397%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 4-Fluoro-3-methoxy-benzaldehyde (6.16 g, 40 mmol), and malonic acid (6.24 g, 60 mmol) in pyridine (30 ml) and piperidine (1 ml) was heated at 120° C. for 2 hrs. The mixture was cooled to room temperature and neutralized with concentrated HCl to PH<3, the white solid was collected and dried to give 7.6 g of product (97% yield). LC-MS: m/e 195 (M−1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07572809B2
Source datasetuspto-grants-2009_08
ORD IDord-7c2cf292a17f448dae2c111e5cf6b23e
Source noteuspto-grants-2009_08