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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1929605Generated: November 2, 2026

Malonic Acid → 3-(2,4-Difluoro-3-methyl-phenyl)-acrylic acid

https://huagongshe.com/reaction/1929605

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalonic AcidHCID 867—
Reactant2,4-Difluoro-3-methylbenzaldehydeHCID 12137489—
Product3-(2,4-Difluoro-3-methyl-phenyl)-acrylic acidHCID 66733996—

Reaction Steps

According to the previously described general procedure (GP1), Knoevenagel condensation (75° C.; 3h30) between 2,4-difluoro-3-methyl-benzaldehyde (1.560 g; 9.744 mmol) and malonic acid (1.926 g; 18.515 mmol) gave the product 3-(2,4-difluoro-3-methyl-phenyl)-acrylic acid as a pale yellow solid (1.600 g; 83%). LC-MS: tR=0.86 min; [M+H]+: no ionisation.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188082B2
Source datasetuspto-grants-2012_05
ORD IDord-df10f7ca732c48608ccd88a057c12193
Source noteuspto-grants-2012_05