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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1838529Generated: October 31, 2026

Potassium Carbonate → HCID 22478209, compound

https://huagongshe.com/reaction/1838529

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-(2-Bromoethyl)-1,3-dioxolaneHCID 87776—
Reactant4-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazolineHCID 135513720—
SolventDimethylformamideHCID 6228—
ProductHCID 22478209HCID 2247820917%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of 2-(2-bromoethyl)-1,3-dioxolane (258 mg, 1.4 mmol) in DMF (0.5 ml) was added to a mixture of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (329 mg, 1.02 mmol) and potassium carbonate (264 mg, 2 mmol) in DMF t2 ml). The mixture was heated at 100° C. for 3 hours and allowed to cool. The volatiles were removed by evaporation, and the residue partitioned between aqueous sodium hydrogen carbonate solution and methylene chloride. The organic phase was separated and passed through phase separating paper. The solvent was removed by evaporation, and the residue was purified by column chromatography eluting with methylene chloride/methanol (95/5) to give 4-(4-chloro-2-fluoroanilino)-7-(2-(1,3-dioxolan-2-yl)ethoxy)6-methoxyquinazoline (71 mg, 17%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06673803B2
Source datasetuspto-grants-2004_01
ORD IDord-e52182220b90430a8a71153e42ae83f2
Source noteuspto-grants-2004_01