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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 381686Generated: October 26, 2026

Triethylamine → 2-Chloro-3-nitro-4-[2-(2-thiophenyl)ethyl]aminopyridine

https://huagongshe.com/reaction/381686

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantThiopheneethanamineHCID 116521—
Reactant2,4-Dichloro-3-nitropyridineHCID 10535773—
SolventEthanolHCID 702—
Product2-Chloro-3-nitro-4-[2-(2-thiophenyl)ethyl]aminopyridineHCID 22463319—

Reaction Steps

A mixture of 2,4-dichloro-3-nitropyridine (1.5 g), 2-aminoethylthiophene (1 g) and triethylamine (5 mL) is heated to reflux in EtOH (60 mL). The reaction mixture is cooled, the solvent evaporated and the residue chromatographed on silica gel (10% hexane/CH2Cl2) to yield the desired addition product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06307054B1
Source datasetuspto-grants-2001_10
ORD IDord-1a18771d1d37401db6fc677a7f88697a
Source noteuspto-grants-2001_10