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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 85124Generated: October 25, 2026

Benzimidazole → 2-(2-(difluoromethyl)-4-fluorophenyl)-1H-benzo[d]imidazole-4-carboxylic acid

https://huagongshe.com/reaction/85124

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzimidazoleHCID 5798—
Reactant2,3-Diaminobenzoic acidHCID 198069—
Reactant2-(Difluoromethyl)-4-fluorobenzaldehydeHCID 86652255—
Product2-(2-(difluoromethyl)-4-fluorophenyl)-1H-benzo[d]imidazole-4-carboxylic acidHCID 67203026—

Reaction Steps

The same general procedure outlined above for the preparation of benzimidazole was used employing 2-(difluoromethyl)-4-fluorobenzaldehyde 45 and 2,3-diaminobenzoic acid 1 as the starting materials to afford 2-(2-(difluoromethyl)-4-fluorophenyl)-1H-benzo[d]imidazole-4-carboxylic acid 46. MS (ESI) calcd for C15H9F3N2O2: 306.6; found: 307 [M+H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846947B2
Source datasetuspto-grants-2014_09
ORD IDord-74fc318cc7de48ce92ab8b4c2f194d8e
Source noteuspto-grants-2014_09