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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2361486Generated: November 2, 2026

2-Aminobenzimidazole → HCID 58362394, compound

https://huagongshe.com/reaction/2361486

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminobenzimidazoleHCID 13624—
Reactant2-bromo-1-[4-(diethylamino)phenyl]ethanoneHCID 2795030—
SolventMethanolHCID 887—
ProductHCID 58362394HCID 5836239436.4%

Reaction Steps

A solution of 2-aminobenzimidazole (197 mg, 1.5 mmol) and 2-Bromo-4′-(diethylamino)acetophenone (402 mg, 1.5 mmol) in MeOH (7 mL) was stirred at r.t. for 18 hours. The volatiles were removed in vacuo and NaHCO3 (sat. aq., 30 mL) was added. The aqueous mixture was extracted with EtOAc (3×30 mL). The combined EtOAc extracts were dried with MgSO4 and concentrated in vacuo. The residue was purified on silica gel eluting with a gradient up to 5:95 (MeOH:DCM) to isolate 2-(2-amino-1H-benzo[d]imidazol-1-yl)-1-(4-(diethylamino)phenyl)ethanone (176 mg, 36%) as a beige solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691187B2
Source datasetuspto-grants-2014_04
ORD IDord-83d5ecc02bec476b984d748ecec25da2
Source noteuspto-grants-2014_04