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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 547176Generated: October 25, 2026

Hydrochloric Acid → HCID 22478250, compound

https://huagongshe.com/reaction/547176

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Chloro-2-fluoroanilineHCID 93898—
Reactant4,7-Dichloro-6-nitroquinazolineHCID 10490455—
SolventAcetoneHCID 180—
SolventIsopropanolHCID 3776—
ProductHCID 22478250HCID 2247825090%

Reaction Steps

A mixture of 4,7-dichloro-6-nitroquinazoline (24.4 g, 0.1 mol), 4-chloro-2-fluoroaniline and ethereal hydrogen chloride (100 ml of a 1M solution) in 2-propanol (600 ml) was heated at reflux for 1.5 hours. The mixture was allowed to cool and diluted with acetone. The solid product was collected by filtration, washed with acetone and dried to give 7-chloro-4-(4-chloro-2-fluoroanilino)-6nitroquinazoline hydrochloride (35.0 g, 90%) as a yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE042353E1
Source datasetuspto-grants-2011_05
ORD IDord-9b64e283a6044048b2a081954f550360
Source noteuspto-grants-2011_05