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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 324283Generated: October 29, 2026

Sodium Chloride → HCID 22004124, compound

https://huagongshe.com/reaction/324283

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantN-bromobutanimideHCID 67184—
Reactant1-Phenyl-1H-benzimidazol-5-olHCID 667662—
SolventDimethylformamideHCID 6228—
ProductHCID 22004124HCID 22004124—

Reaction Steps

A solution of N-bromosuccinimide (0.72 g, 4.04 mmol) in DMF (5 mL) was added dropwise at room temperature to a solution of 5-hydroxy-1-phenylbenzimidazole (0.85 g, 4.04 mmol) in DMF (30 mL). After 1 hour the solution was diluted with aqueous NaCl and extracted into EtOAc, and the extract was worked up to give a solid which was chromatographed on silica gel. Elution with EtOAc/petroleum ether (1:1) gave foreruns, while EtOAc eluted Example 64 (0.88 g, 75%). HCl salt: mp (MeOH/Et2O) 244-246° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06218388B1
Source datasetuspto-grants-2001_04
ORD IDord-661ba4f2301a4368b2c97b600a7de20d
Source noteuspto-grants-2001_04