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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2182525Generated: October 30, 2026

Dimethylformamide → HCID 22478209, compound

https://huagongshe.com/reaction/2182525

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant1,3-DioxolaneHCID 12586—
Reactant4-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazolineHCID 135513720—
ProductHCID 22478209HCID 22478209107%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of 242-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 (2 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, 107%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06897210B2
Source datasetuspto-grants-2005_05
ORD IDord-80bc342df173435b90657dbe7f658067
Source noteuspto-grants-2005_05