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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1072542Generated: November 4, 2026

4-Nitrobenzoic Acid → HCID 22387232, compound

https://huagongshe.com/reaction/1072542

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Nitrobenzoic AcidHCID 6108—
Reactant4-Fluorobenzene-1,2-diamineHCID 164584—
SolventPhosphorus oxychlorideHCID 24813—
ProductHCID 22387232HCID 22387232—

Reaction Steps

2-(4-Nitrophenyl)-5-fluoro benzimidazole was synthesized as follows: 1,2-diamino-4-fluorobenzene (1.26 g, 10.0 mmole) was mixed with 4-nitrobenzoic acid (1.67 g, 9.8 mmole) and dissolved in POCl3 (10 ml) and heated to reflux for 2.5 hours. The reaction mixture was cooled and cautiously poured onto ice. The resulting solid was filtered, washed with NaHCO3 and used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06911462B2
Source datasetuspto-grants-2005_06
ORD IDord-0f212502066f4965bac50d9e2f22e78d
Source noteuspto-grants-2005_06