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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1363124Generated: November 2, 2026

2-(Ethoxymethylene)propanedinitrile → 1H-Benzimidazole-6-carbonitrile

https://huagongshe.com/reaction/1363124

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(Ethoxymethylene)propanedinitrileHCID 67152—
Reactant3,4-DiaminobenzonitrileHCID 737285—
SolventIsopropanolHCID 3776—
Product1H-Benzimidazole-6-carbonitrileHCID 223906—

Reaction Steps

A mixture of 3,4-diaminobenzonitrile (2) (1.0 g) and (ethoxymethylene)malononitrile (1.4 g) was refluxed in 50 mL of isopropyl alcohol for 16 h. The mixture was concentrated in vacuo to provide the title compound, 3H-benzo[d]imidazole-5-carbonitrile (3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07884109B2
Source datasetuspto-grants-2011_02
ORD IDord-d9aadab0f5414477931c8f7a1a189282
Source noteuspto-grants-2011_02