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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 275747Generated: November 2, 2026

Hydrogen Bromide → HCID 18315899, compound

https://huagongshe.com/reaction/275747

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 18315898HCID 18315898—
SolventWaterHCID 962—
ProductHCID 18315899HCID 1831589978%

Reaction Steps

A mixture of 2-(4-chlorophenyl)-3-(2-hydroxyethyl)-4(3H)-quinazolinone (0.068 mol) and HBr in water 46% (200 ml) was stirred and refluxed for 90 minutes. 300 ml of water was added. The crystallized product was filtered off and dried (fraction 1). The filtrate (oil) was solidified (fraction 2). Both fractions were combined, yielding 23.5 g (78%) of 3-(2-bromoethyl)-2-(4-chlorophenyl)-4(3H)-quinazolinone monohydrobromide; mp. 214.0° C. (interm. 19).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06352999B1
Source datasetuspto-grants-2002_03
ORD IDord-205b9c728bd5418badeeb6872763d262
Source noteuspto-grants-2002_03