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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382581Generated: November 1, 2026

Hydrochloric Acid → (E)-2-[2-(Cyclohexyl)ethenyl]-5-methoxy-1-(2-pyridyl)-1H-benzimidazole hydrochloride

https://huagongshe.com/reaction/382581

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(E)-1-(2-pyridyl)-2-styryl-1H-benzimidazoleHCID 9796241—
Reactant(E)-3-cyclohexylacryloyl chlorideHCID 12542153—
Reactant2-amino-4-methoxy-N-(2-pyridyl)anilineHCID 22736653—
SolventMethanolHCID 887—
Product(E)-2-[2-(Cyclohexyl)ethenyl]-5-methoxy-1-(2-pyridyl)-1H-benzimidazole hydrochlorideHCID 22736712—

Reaction Steps

Free base of the titled compound was prepared from 4-methoxy-2-amino-N-(2-pyridyl)aniline and (E)-3-cyclohexylacryloyl 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/n-hexane yielded the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06310079B1
Source datasetuspto-grants-2001_10
ORD IDord-21cee7a5c4fa4430bca62fe267209150
Source noteuspto-grants-2001_10