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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2072677Generated: October 25, 2026

Acetic Acid → HCID 178523102, compound

https://huagongshe.com/reaction/2072677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantMalonamideHCID 7911—
ReactantEthyl N-(thiophene-2-carbonyl)glycinateHCID 1720748—
ReactantSodiumHCID 5360545—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178523102HCID 17852310229.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of sodium (1.4 g) in ethanol (120 ml) was added malonamide (3.8 g) and the mixture was heated at 60° C. for an hour under stirring. Then after added N-(2-thenoyl)glycine ethyl ester (8 g), the mixture was refluxed for 6 hours. The mixture was concentrated to give the residue which was diluted with water. The aqueous mixture was neutralized by adding acetic acid to deposit a crystalline product which was collected by filtration and recrystallized from dimethylformamide (DMF) to give the objective product (2.8 g) as colorless crystals, mp 270°-275° C. (decompd.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04914104
Source datasetuspto-grants-1990_04
ORD IDord-55e0a80065a640df8af85270c226556e
Source noteuspto-grants-1990_04