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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1826326Generated: October 30, 2026

Hydrochloric Acid → HCID 22140716, compound

https://huagongshe.com/reaction/1826326

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPhenolHCID 996—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 11974447HCID 11974447—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
ProductHCID 22140716HCID 2214071634.8%

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of 4-(6-chloro-2,3-methylenedioxyanilino)-5-fluoroquinazoline (0.213 g), phenol (0.45 g), potassium carbonate (0.828 g) and DMF (3 ml) was stirred and heated to 90° C. for 30 hours. The mixture was evaporated and the residue was partitioned between ethyl acetate and a 2N aqueous sodium hydroxide solution. The organic layer was washed with brine, dried over magnesium sulphate and evaporated. The residue was purified by column chromatography on silica using a 99:1 mixture of methylene chloride and methanol as eluent. The material so obtained was dissolved in diethyl ether and a 6M solution of hydrogen chloride in diethyl ether (1 equivalent) was added. The resultant solid was isolated, washed with diethyl ether and dried under vacuum. There was thus obtained the title compound (0.05 g); NMR Spectrum: (DMSOd6 and CF3CO2D) 6.18 (s, 2H), 6.95 (d, 1H), 7.05 (d, 1H), 7.1 (d, 1H), 7.35 (d, 1H), 7.42 (m, 1H), 7.52–7.62 (m, 3H), 8.0 (m, 1H), 9.0 (s, 1H); Mass Spectrum: M+H+ 392 and 394.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07049438B2
Source datasetuspto-grants-2006_05
ORD IDord-b5600814dd7a4cb684f696742a4d95cf
Source noteuspto-grants-2006_05