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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 847035Generated: October 30, 2026

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

https://huagongshe.com/reaction/847035

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 numberUS05138069
Source datasetuspto-grants-1992_08
ORD IDord-96638966e0cd47e08f991f481b488f95
Source noteuspto-grants-1992_08