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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1937048Generated: October 31, 2026

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

https://huagongshe.com/reaction/1937048

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 numberUS06392049B1
Source datasetuspto-grants-2002_05
ORD IDord-12e49bfb6e39457f8d7f481c084af6db
Source noteuspto-grants-2002_05