Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1087774Generated: October 31, 2026

Hydrogen Bromide → HCID 22163881, compound

https://huagongshe.com/reaction/1087774

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantBromineHCID 24408—
Reactant1-(1H-1,3-benzodiazol-5-yl)ethan-1-oneHCID 12262904—
SolventAcetic AcidHCID 176—
ProductHCID 22163881HCID 22163881—

Reaction Conditions

Temperature40 °C

Reaction Steps

1.21 g (7.6 mmol) of bromine in 5 ml of glacial acetic acid are added to a solution of 1.2 g (7.5 mmol) of 5-acetylbenzimidazole and 1.35 g of 48% strength aqueous HBr (=8 mmol of HB) in 15 ml of glacial acetic acid at room temperature. The mixture is stirred at 40° C. for 30 minutes and cooled and the product which has precipitated out is filtered off.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04960783
Source datasetuspto-grants-1990_10
ORD IDord-b1793726a0e646c58847c84ea25c9226
Source noteuspto-grants-1990_10