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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1156129Generated: October 31, 2026

Diethyl Malonate → HCID 54349513, compound

https://huagongshe.com/reaction/1156129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl MalonateHCID 7761—
ReactantSodium hydrideHCID 24758—
ReactantHCID 20536423HCID 20536423—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 54349513HCID 54349513—

Reaction Steps

A solution of 26.6 g. of diethyl malonate and 10 ml. of 1,2-dimethoxyethane is added to a suspension of 4.0 g. of sodium hydride in 1,2-dimethoxyethane under argon. A solution of 17.3 g. of 2-fluoro-4-(hexadecylamino)benzoyl chloride hydrochloride in 1,2-dimethoxyethane is then added. The reaction mixture is refluxed for 4.5 hours, cooled, poured on ice, acidified, and extracted with ether. The ether solution is washed with water and saturated sodium chloride solution, dried over anhydrous sodium sulfate and concentrated to dryness. Addition of a small amount of ethanol to the residue gives a solid which is filtered and discarded. The ethanol filtrate is concentrated and the residue is recrystallized from ether to yield diethyl 2-fluoro-4-(hexadecylamino)benzoylmalonate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04333940
Source datasetuspto-grants-1982_06
ORD IDord-9a07466e6220413e8c9b15d09a777b84
Source noteuspto-grants-1982_06