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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1461295Generated: November 2, 2026

Triethylamine → HCID 21250745, compound

https://huagongshe.com/reaction/1461295

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2-Aminothiophene-3-carboxamideHCID 699495—
Reactant2-Propoxybenzoyl chlorideHCID 15921913—
SolventAcetonitrileHCID 6342—
ProductHCID 21250745HCID 21250745—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 2-propoxybenzoyl chloride (0.99 g) in acetonitrile (7.5 ml) was added dropwise over 5 minutes to a cooled (0° C.), stirred mixture of 2-aminothiophene-3-carboxamide (0.71 g) and triethylamine (0.51 g) in acetonitrile (7.5 ml). The reaction mixture was stirred for one hour while being allowed to warm to ambient temperature and was then allowed to stand overnight. Acetonitrile was removed under reduced pressure and the residue was washed with water and recrystallised from ethanol-water to afford 2-(2-propoxybenzamido)thiophene-3-carboxamide, 0.91 g, m.p. 176.5°-178.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05075310
Source datasetuspto-grants-1991_12
ORD IDord-1c4b8c7229874aae8bbd195d4b9d8570
Source noteuspto-grants-1991_12