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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 730766Generated: October 30, 2026

1,1'-Carbonyldiimidazole → 4-Nitro-6-(trifluoromethyl)-1,3-dihydro-2H-benzimidazol-2-one

https://huagongshe.com/reaction/730766

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant1,2-Benzenediamine, 3-nitro-5-(trifluoromethyl)-HCID 5066063—
Product4-Nitro-6-(trifluoromethyl)-1,3-dihydro-2H-benzimidazol-2-oneHCID 11630155—

Reaction Steps

The reaction of 3-nitro-5-(trifluoromethyl)benzene-1,2-diamine (2.2 g, 10 mmol) with 1,1′-carbonyldiimidazole (1.78 g, 11 mmol, Aldrich) under the conditions of Example 1b afforded the title compound as a yellow solid. MS (ESI, pos. ion) m/z: 248 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582761B2
Source datasetuspto-grants-2009_09
ORD IDord-a945950ee2b24cd7beae1665faf102fc
Source noteuspto-grants-2009_09