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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2233270Generated: October 30, 2026

Methyl 4-aminobenzoate → 6,7-Dimethoxyquinazoline

https://huagongshe.com/reaction/2233270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 4-aminobenzoateHCID 12082—
Reactant4-Chloro-6,7-dimethoxyquinazolineHCID 2769364—
SolventIsopropanolHCID 3776—
Product6,7-DimethoxyquinazolineHCID 3031661190.9%

Reaction Steps

A solution of methyl 4-aminobenzoate (151 mg, 1.00 mmol) and 4-chloro-6,7-dimethoxyquinazoline (224 mg, 1.00 mmol) in isopropanol (200 ml) was heated at reflux for 3 hours before the reaction was allowed to cool to ambient temperature. The solid which had precipitated was collected by suction filtration and washed with diethyl ether (2×50 ml). Drying of this material yielded 4-(4-carbomethoxy)anilino)-6,7-dimethoxyquinazoline (363 mg, 97% yield) as a white solid:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07709479B1
Source datasetuspto-grants-2010_05
ORD IDord-cfdc806089314ec5b71728e56a7d9c81
Source noteuspto-grants-2010_05