Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 452328Generated: October 30, 2026

2-Aminobenzimidazole → HCID 58362394, compound

https://huagongshe.com/reaction/452328

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 numberUS08491869B2
Source datasetuspto-grants-2013_07
ORD IDord-cdcdd1d8fd254dbe8e9a6824ff15a654
Source noteuspto-grants-2013_07