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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2415759Generated: October 31, 2026

Triethylamine → HCID 73990601, compound

https://huagongshe.com/reaction/2415759

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantEthyl 5-cyanonicotinateHCID 359390—
ReactantHydroxyamine hydrochlorideHCID 443297—
SolventMethanolHCID 887—
ProductHCID 73990601HCID 73990601—

Reaction Conditions

Temperature0 °C

Reaction Steps

Ethyl-(5-cyano-3-pyridyl)carboxylate) (WO 96/30372) (1.8 g, 10.2 mmol) was dissolved in methanol (50 mL), the solution was cooled to 0° C. then hydroxylamine hydrochloride (0.71 g, 10.2 mmol) and triethylamine (1.4 mL, 10.2 mmol) were added and the mixture was stirred at room temperature for 72 hours. The solvent was removed in vacuo, and the residue was purified by flash chromatography on silica gel (graded elution of dichloromethane/methanol 95:5 to 93:7) to give the title compound as a white solid which contained 0.3 equivalents of triethylamine hydrochloride (2.5 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06821972B2
Source datasetuspto-grants-2004_11
ORD IDord-b3734df8c6e445969b89826a78e67c86
Source noteuspto-grants-2004_11