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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591747Generated: November 1, 2026

Carbon tetrabromide → HCID 136348011, compound

https://huagongshe.com/reaction/591747

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
ReactantHCID 136183437HCID 136183437—
SolventDimethylformamideHCID 6228—
ProductHCID 136348011HCID 136348011—

Reaction Steps

To a solution of 2-[4-(4-hydroxy-butoxy)-3,5-dimethyl-phenyl]-5,7-dimethoxy-3H-quinazolin-4-one (675 mg, 1.69 mmol) in DMF (10 mL) were added PPh3 (489 mg, 1.86 mmol) and CBr4 (619 mg, 1.86 mmol). The reaction mixture was stirred at room temperature for 16 hours. Solvent was removed under reduced pressure. The residue was triturated with ether and ethyl acetate. The solid was dried and then purified by the Simpliflash system using 5% methanol in CH2Cl2 as the eluent to give 2-[4-(4-bromo-butoxy)-3,5-dimethyl-phenyl]-5,7-dimethoxy-3H-quinazolin-4-one as a white solid. Yield: 494 mg (63%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-c7b88e0b43fe48f8800342be741cd292
Source noteuspto-grants-2016_01