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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 446172Generated: October 26, 2026

Phenyl isocyanate → N-(4-cyanopheny)-N-(1H-imidazol-1-yl)-N'-phenylurea

https://huagongshe.com/reaction/446172

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
Reactant4-[(1H-imidazol-1-yl)amino]benzonitrileHCID 23018188—
SolventTetrahydrofuranHCID 8028—
ProductN-(4-cyanopheny)-N-(1H-imidazol-1-yl)-N'-phenylureaHCID 69455384—

Reaction Conditions

Temperature50 °C

Reaction Steps

Phenyl isocyanate (3.6 ml, 32.6 mmol) was added to a solution of 4-[N-(1H-imidazol-1-yl)amino]benzonitrile (5 g, 27.17 mmol) in THF (50 ml). The mixture was stirred at 50° C. overnight and after evaporation was crystallised in acetone/EtOH to give white crystals (2.5 g, 30.3%, 178° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08476455B2
Source datasetuspto-grants-2013_07
ORD IDord-9d739387e3b6469f8c4a265973962a77
Source noteuspto-grants-2013_07