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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 653874Generated: October 27, 2026

Diaminomaleonitrile → 2-butyl-1H-imidazole-4,5-dicarbonitrile

https://huagongshe.com/reaction/653874

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiaminomaleonitrileHCID 2723951—
ReactantEthyl pentanimidate hydrochlorideHCID 12283341—
SolventPyridineHCID 1049—
Product2-butyl-1H-imidazole-4,5-dicarbonitrileHCID 5260591—

Reaction Steps

Ethyl pentanimidate hydrochloride (42.66 g, 257.8 mmol, 1 eq), diaminomaleonitrile (27.90 g, 258.1 mmol, 1 eq) and pyridine (400 mL) were mixed and refluxed for 48 hours under N2. The solvent was removed by rotary evaporation.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05128355
Source datasetuspto-grants-1992_07
ORD IDord-73dfc0501e414c50b61e11a56c43dd3d
Source noteuspto-grants-1992_07