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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 265181Generated: October 25, 2026

Ethyl orthopropionate → 2-ethyl-1H-imidazole-4,5-dicarbonitrile

https://huagongshe.com/reaction/265181

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl orthopropionateHCID 66995—
ReactantDiaminomaleonitrileHCID 2723951—
Product2-ethyl-1H-imidazole-4,5-dicarbonitrileHCID 526059382.6%

Reaction Steps

Following a procedure similar to that described in Preparation 1, but using 53.3 g of diaminomaleonitrile and 91.3 g of triethyl orthopropionate. 59.5 g of the title compound were obtained as crystals, melting at 179°-181° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05646171
Source datasetuspto-grants-1997_07
ORD IDord-dec0a31a0512481c84e20012bc3898f6
Source noteuspto-grants-1997_07