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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2363937Generated: October 31, 2026

Triethylamine → HCID 66743788, compound

https://huagongshe.com/reaction/2363937

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantAmmonium ChlorideHCID 25517—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 60097591HCID 60097591—
SolventDimethylformamideHCID 6228—
ProductHCID 66743788HCID 6674378850.2%

Reaction Steps

To a solution of 2-amino-5-(pyridin-4-yl)thiophene-3-carboxylic acid (2.20 g, 10 mmol), ammonium chloride (1.09 g, 20 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (2.30 g, 30 mmol) and 1-hydroxybenzotriazole (1800 mg, 12 mmol) in DMF (100 mL) was added triethylamine (3.0 g, 30 mmol) at room temperature. The reaction mixture was stirred overnight at room temperature. After removal of the solvent, the residue was purified by column chromatography on silica gel (MeOH: DCM=1:19) to give the title compound (1100 mg, 50%) as a brown solid:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691828B2
Source datasetuspto-grants-2014_04
ORD IDord-3a39cee2396f4b3cb991e3d4bd1ff505
Source noteuspto-grants-2014_04