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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1751892Generated: October 28, 2026

Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1) → 4-(2-Hydroxy-2-(4-tert-butylphenyl)ethoxy)quinazoline

https://huagongshe.com/reaction/1751892

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 466102—
Reactant4-(2-Tetrahydropyranyloxy-2-(4-tert-butylphenyl)ethoxy)quinazolineHCID 59678691—
SolventEthanolHCID 702—
Product4-(2-Hydroxy-2-(4-tert-butylphenyl)ethoxy)quinazolineHCID 59678619—

Reaction Conditions

Temperature55 °C

Reaction Steps

4-(2-tetrahyropyranyloxy-2-(4-tert-butylphenyl)ethoxy) quinazoline (0.25 g, 0.615 mmol) is dissolved in 5 ml ethanol and pyridinium-p-toluenesulfonate (15.4 mg, 0.061 mmol) is added to it. The solution is heated to 55° C. and stirred at that temperature for 4 hours. The ethanol is removed and the crude is purified by flash chromatography (silica gel; ethyl acetate/hexanes).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09161997B2
Source datasetuspto-grants-2015_10
ORD IDord-b37f8f99918b406f9edd6487db7b91b2
Source noteuspto-grants-2015_10