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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382576Generated: October 27, 2026

Hydrochloric Acid → (E)-5-Fluoro-(4-methoxystyryl)-1-(2-pyridyl)-1H-benzimidazole hydrochloride

https://huagongshe.com/reaction/382576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(E)-1-(2-pyridyl)-2-styryl-1H-benzimidazoleHCID 9796241—
Reactanttrans-4-Methoxycinnamoyl chlorideHCID 10976422—
Reactant4-fluoro-2-amino-N-(2-pyridyl)anilineHCID 22736745—
SolventMethanolHCID 887—
Product(E)-5-Fluoro-(4-methoxystyryl)-1-(2-pyridyl)-1H-benzimidazole hydrochlorideHCID 22736773—

Reaction Steps

Free base of the titled compound was prepared from 4-fluoro-2-amino-N-(2-pyridyl)aniline and (E)-4-methoxycinnamoyl chloride according to the preparation of (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole (Example 1, method A). The free base was treated with a 10% methanol solution of hydrogen chloride and concentrated to dryness. The residue was recrystallized from ethyl acetate/ethanol to give the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06310079B1
Source datasetuspto-grants-2001_10
ORD IDord-0fee7e0766ed4dd59074511224a76655
Source noteuspto-grants-2001_10