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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1900647Generated: October 30, 2026

4,6-Dichloroquinazoline → 4-(4-Chloro-3-nitrobenzyl)amino-6-chloroquinazoline

https://huagongshe.com/reaction/1900647

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,6-DichloroquinazolineHCID 246024—
Reactant(4-Chloro-3-nitrobenzyl)amine hydrochlorideHCID 18796739—
SolventIsopropanolHCID 3776—
SolventTriethylamineHCID 8471—
Product4-(4-Chloro-3-nitrobenzyl)amino-6-chloroquinazolineHCID 1879674292.6%

Reaction Steps

3.00 g (0.015 mol) of 4,6-dichloroquinazoline and 3.80 g (0.0170 mol) of 4-chloro-3-nitrobenzylamine hydrochloride were dissolved in a mixture comprising 100 ml of isopropyl alcohol and 15 ml of triethylamine. The obtained solution was heated under reflux for 24 hours and distilled under a reduced pressure to remove the solvent. The residue was purified by silica gel column chromatography (chloroform/ethyl acetate) and recrystallized from chloroform/n-hexane to give 4.85 g of the title compound as a pale-yellow crystal.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05576322
Source datasetuspto-grants-1996_11
ORD IDord-635dd2cf223d47b79eca8eca64719836
Source noteuspto-grants-1996_11