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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1875832Generated: October 27, 2026

2-Bromobenzoic acid → 2-(2-bromo-phenyl)-5,6-difluoro-1H-benzoimidazole

https://huagongshe.com/reaction/1875832

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Bromobenzoic acidHCID 6940—
Reactant1,2-Diamino-4,5-difluorobenzeneHCID 2736755—
Reactant3-[2-(4-Chloro-2-cyclopentylmethoxy-phenyl)-5,6-difluoro-benzoimidazol-1-ylmethyl]-benzoic acidHCID 58209276—
Product2-(2-bromo-phenyl)-5,6-difluoro-1H-benzoimidazoleHCID 60981492—

Reaction Steps

The title compound was prepared in analogy to Example 19, intermediate c, from 4,5-difluoro-benzene-1,2-diamine (CAS Reg. No. 76179-40-3) and 2-bromo-benzoic acid (CAS Reg. No. 88-65-3). Yellow solid (85%). MS (Turbo Spray): m/z=273.0 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08309581B2
Source datasetuspto-grants-2012_11
ORD IDord-9b11b6921c3449f1908e05e20e5ab5d0
Source noteuspto-grants-2012_11