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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1507768Generated: October 31, 2026

Pyridine → HCID 33239760, compound

https://huagongshe.com/reaction/1507768

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Fluorobenzoyl chlorideHCID 67879—
ReactantPropanedioic acid, 2-amino-, 1,3-diethyl ester, hydrochloride (1:1)HCID 3084143—
SolventDimethylformamideHCID 6228—
ProductHCID 33239760HCID 3323976070%

Reaction Steps

To a solution of diethyl aminomalonate hydrochloride (5.0 g, 23.6 mmol) in pyridine (7.64 ml, 94.5 mmol) and dimethylformamide (60 ml) was added p-fluorobenzoyl chloride (4.19 ml, 35.4 mmol). The reaction mixture was stirred at room temperature for 15 hours. After removing the solvents, the residue was redissolved in dichloromethane, washed with water, brine and dried over Na2SO4. After removing the solvents, the crude residue was purified by flash chromatography on silica (CH2Cl2/MeOH 30:1) to yield the title compound as a white solid (4.9 g, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221822B2
Source datasetuspto-grants-2015_12
ORD IDord-4e5dcca6d681475da6ac97486e1132f1
Source noteuspto-grants-2015_12