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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 730839Generated: October 28, 2026

1,1'-Carbonyldiimidazole → 2-oxo-2,3-dihydro-1H-benzimidazole-5-carbonitrile

https://huagongshe.com/reaction/730839

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant3,4-DiaminobenzonitrileHCID 737285—
Product2-oxo-2,3-dihydro-1H-benzimidazole-5-carbonitrileHCID 11643974—

Reaction Steps

3,4-Diaminobenzonitrile (3.171 g, 23.8 mmol, Oakwood) was reacted with 1,1′-carbonyldiimidazole (3.862 g, 23.8 mmol, Aldrich) under the conditions of Example 1b to give the title compound as an amorphous solid. MS (ESI, pos. ion) m/z: 160 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582761B2
Source datasetuspto-grants-2009_09
ORD IDord-39bcdef35df245cc8e56679d5b708abc
Source noteuspto-grants-2009_09