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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591738Generated: November 2, 2026

Carbon tetrabromide → HCID 136348023, compound

https://huagongshe.com/reaction/591738

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
ReactantHCID 136348020HCID 136348020—
SolventDimethylformamideHCID 6228—
ProductHCID 136348023HCID 136348023—

Reaction Steps

To a solution of 2-[4-(3-hydroxy-propoxy)-3,5-dimethyl-phenyl]-5,7-dimethoxy-3H-quinazolin-4-one (1.39 g, 3.62 mmol) in DMF (15 mL) were added PPh3 (1.04 g, 3.98 mmol) and CBr4 (1.32 g, 3.98 mmol). The reaction mixture was stirred at room temperature for 16 hours. Then, solvent was removed under reduced pressure. The residue was triturated with ether and ethyl acetate. The solids were dried and purified by the Simpliflash system, using 2% methanol in CH2Cl2, to give 2-[4-(3-bromo-propoxy)-3,5-dimethyl-phenyl]-5,7-dimethoxy-3H-quinazolin-4-one as a white solid. Yield: 940 mg (58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-b3f4e98748a94b388af95c9039067c9c
Source noteuspto-grants-2016_01