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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 720499Generated: October 28, 2026

Ethanol → HCID 21892028, compound

https://huagongshe.com/reaction/720499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantTriethylamineHCID 8471—
Reactant2-chloro-N-(3-chloro-4-methoxyphenyl)acetamideHCID 2404804—
ReactantSodium ethoxideHCID 2723922—
Reactant2-Ethylpropanedioyl dichlorideHCID 10920924—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductHCID 21892028HCID 21892028—

Reaction Steps

A solution of ethylmalonyl chloride (17 ml, 131 mmol) is added dropwise under argon and at 0° C. to a solution of 5-chloro-2-chloroacetyl-4-methoxyaniline (17 g, 73 mmol) and triethylamine (18,5 ml, 131 mmol) in anhydrous acetonitrile (310 ml). Agitation is carried out for 2 hours at ambient temperature, then a solution of sodium ethanolate in ethanol (obtained by 1.88 g, 80 mmol, of sodium in 90 ml of ethanol) is added dropwise at 0° C. Agitation is carried out for 12 hours at ambient temperature. 300 ml of water is added, and agitation is again carried out for 20 minutes. The precipitate is filtered out; washed with water, with ethanol, and with ethyl ether. After drying under vacuum 16.7 g of a yellowish solid is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135478B2
Source datasetuspto-grants-2006_11
ORD IDord-3370e0663dfc40eca60bcd6254584f83
Source noteuspto-grants-2006_11