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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 840746Generated: October 30, 2026

4-Nitrobenzoic Acid → HCID 22387232, compound

https://huagongshe.com/reaction/840746

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 numberUS06369091B1
Source datasetuspto-grants-2002_04
ORD IDord-d9b23fe144f5457fac3a78968af12f50
Source noteuspto-grants-2002_04