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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382572Generated: October 25, 2026

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

https://huagongshe.com/reaction/382572

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Methyl-2-nitroanilineHCID 6978—
Reactant(E)-1-(2-pyridyl)-2-styryl-1H-benzimidazoleHCID 9796241—
Reactanttrans-4-Methoxycinnamoyl chlorideHCID 10976422—
SolventMethanolHCID 887—
Product(E)-5-Methyl-2-(4-methoxystyryl)-1-(2-pyridyl)-1H-benzimidazole hydrochlorideHCID 18360812—

Reaction Steps

Free base of the titled compound was prepared from 4-methyl-2-nitroaniline 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 dissolved with a 10% methanol solution of hydrogen chloride (5 ml). Concentration and recrystallization from ethyl acetate/ethanol yielded the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06310079B1
Source datasetuspto-grants-2001_10
ORD IDord-1b3ce5fe73c64cc1b630a5b48c7e592d
Source noteuspto-grants-2001_10