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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1603847Generated: October 30, 2026

Hydrogen Bromide → HCID 22004117, compound

https://huagongshe.com/reaction/1603847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantHCID 70247570HCID 70247570—
SolventAcetic AcidHCID 176—
ProductHCID 22004117HCID 2200411777%

Reaction Steps

Demethylation of 4-methoxy-1-phenylbenzimidazole hydrochloride with HBr in glacial acetic acid as described for synthesis of Example 2 gave Example 11 as the HCl salt, (77%): mp (MeOH/Et2O) 238-240° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05990146
Source datasetuspto-grants-1999_11
ORD IDord-db31e96638a44264a84d9ff9b645a95e
Source noteuspto-grants-1999_11