Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 50873Generated: October 24, 2026

Hydrochloric Acid → (E)-1-(6-Methylpyrid-2-yl)-2-styryl-1H-benzimidazole hydrochloride

https://huagongshe.com/en/reaction/50873

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant6-Chloro-2-picolineHCID 87601—
Reactant2-(2-Phenylethenyl)-1h-benzimidazoleHCID 242965—
Reactant(E)-1-(2-pyridyl)-2-styryl-1H-benzimidazoleHCID 9796241—
SolventMethanolHCID 887—
Product(E)-1-(6-Methylpyrid-2-yl)-2-styryl-1H-benzimidazole hydrochlorideHCID 22736649—

Reaction Steps

Free base of the titled compound was prepared from 2-styryl-1H-benzimidazole and 2-Chloro-6-methylpyridine according to the preparation of (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole (Example 1, method B). The free base was treated with a 10% methanol solution of hydrogen chloride and concentrated to dryness. The residue was recrystallized from ethyl acetate/n-hexane to give the titled compound. MW: 347.85; mp: 216.0-217.0° C.; 1H-NMR (DMSO-d6) δ: 8.20 (1H, br s), 8.10 (1 H, t, J=7.7 Hz), 7.87 (1H, d, J=7.7 Hz), 7.71-7.44 (10H, m), 7.22 (1H, d, J=16.1 Hz), 2.63 (3H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06713482B2
Source datasetuspto-grants-2004_03
ORD IDord-3a8120cb18b04255baa1d1cdaaa70be9
Source noteuspto-grants-2004_03