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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591773Generated: October 31, 2026

Carbon tetrabromide → HCID 136348056, compound

https://huagongshe.com/reaction/591773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
ReactantHCID 136183425HCID 136183425—
SolventDimethylformamideHCID 6228—
ProductHCID 136348056HCID 136348056—

Reaction Steps

To a solution of 2-[4-(2-hydroxy-ethoxy)-3,5-dimethyl-phenyl]-5,7-diisopropoxy-3H-quinazolin-4-one (0.73 g, 1.70 mmol) in DMF (10 mL) were added PPh3 (0.49 g, 1.87 mmol) and CBr4 (0.62 g, 1.87 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 solid was dried and purified by the Simpliflash system (2% methanol in CH2Cl2 as eluent) to give 2-[4-(2-bromo-ethoxy)-3,5-dimethyl-phenyl]-5,7-diisopropoxy-3H-quinazolin-4-one as a white solid. Yield: 0.39 g (47%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-a2b7808f120d4e63b1e92fad3438d2ef
Source noteuspto-grants-2016_01