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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1850026Generated: November 2, 2026

Bromine → HCID 178516702, compound

https://huagongshe.com/reaction/1850026

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantHCID 178516710HCID 178516710—
CatalystHCID 178418844HCID 178418844—
SolventSulfuric AcidHCID 1118—
SolventCarbon TetrachlorideHCID 5943—
ProductHCID 178516702HCID 17851670240%

Reaction Steps

2-Quinoxalinol (2.9 g, 20 mmol) and silver sulfate (3.1 g, 10 mmol, 0.5 eq.) in sulfuric acid (20 mL) were treated with bromine (1.03 mL, 20 mmol, 1.0 eq.). After stirring at ambient temperature for 18 h, the reaction mixture was diluted with carbon tetrachloride (50 mL), heated to 50° C., and filtered. The filtrate was poured onto ice and the solids collected by filtration and recrystallized from HOAc, giving 6-bromo-2-quinoxalinol (1.8 g, 40%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08957049B2
Source datasetuspto-grants-2015_02
ORD IDord-3e33817400b34ee1a76cfc70b232e8c6
Source noteuspto-grants-2015_02