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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2383788Generated: October 25, 2026

Methanol → 1-Naphthalen-2-yl-imidazolidin-2-one

https://huagongshe.com/reaction/2383788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium hydrideHCID 24758—
ReactantUrea, 1-(2-chloroethyl)-3-(2-naphthyl)-HCID 256650—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
Product1-Naphthalen-2-yl-imidazolidin-2-oneHCID 5963616794%

Reaction Steps

1-(2-Chloro-ethyl)-3-naphthalen-2-yl-urea (I-79a: 750 mg, 3.01 mmol) in dry DMF (10 mL) was added to a stirred solution of sodium hydride (150 mg, 3.1 mmol) in THF (10 mL) at 0° C. The reaction temperature was maintained at room temperature for 30 minutes. The reaction was monitored by TLC (5% MeOH in chloroform, double run). The reaction mixture was quenched with MeOH at 0° C., concentrated under reduced pressure and partitioned between ice water and chloroform. The organic layer was dried over Na2SO4, and concentrated under reduced pressure to afford 600 mg (94% yield) of 1-naphthalen-2-yl-imidazolidin-2-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08263635B2
Source datasetuspto-grants-2012_09
ORD IDord-147c786f8e224fc7a174188866e20021
Source noteuspto-grants-2012_09