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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 65018Generated: October 29, 2026

Phenyl isocyanate → N-[4-(1-cyclopenten-1-yl)-1,3-dimethyl-1H-pyrazol-5-yl]-N'-phenylurea

https://huagongshe.com/reaction/65018

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
Reactant4-(1-cyclopenten-1-yl)-1,3-dimethyl-1H-pyrazol-5-amineHCID 13352192—
SolventBenzeneHCID 241—
ProductN-[4-(1-cyclopenten-1-yl)-1,3-dimethyl-1H-pyrazol-5-yl]-N'-phenylureaHCID 13352208—

Reaction Steps

Phenylisocyanate (0.176 mol) is added to 4-(1-cyclopenten-1-yl)-1,3-dimethyl-1H-pyrazol-5-amine (0.16 mol) in benzene (800 ml). The reaction mixture is stirred at room temperature and then at a temperature between 50° and 70° C. After distillation under vacuum, the product of the title is recovered by usual procedures. M.p. 204° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04612318
Source datasetuspto-grants-1986_09
ORD IDord-8ae964ec380945738e640356bc097d75
Source noteuspto-grants-1986_09