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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 257416Generated: October 31, 2026

Imidazole → HCID 18953543, compound

https://huagongshe.com/reaction/257416

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
ReactantTriethylamineHCID 8471—
Reactant4-Chloro-3-nitropyridineHCID 2735781—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 18953543HCID 1895354396.4%

Reaction Steps

4-Chloro-3-nitropyridine (2.00 g, 12.6 mmol) and imidazole (2.25 g, 33.0 mmol) were dissolved in 10 ml of 1,4-dioxane, and 2 ml of triethylamine was added thereto, followed by reaction at 90° to 100° C. for 1.5 hours. Then, the solvent was removed by distillation under reduced pressure, and the residue was purified by silica gel column chromatography [eluent: dichloromethane:methanol=10:1 (v/v)] to obtain 2.31 g of a yellow liquid (yield: 96.4%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05262415
Source datasetuspto-grants-1993_11
ORD IDord-6adec537ab4744ba99ae6ece8f185091
Source noteuspto-grants-1993_11