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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 523527Generated: October 26, 2026

Methanol → 1-(4-Cyclopropylpyridin-3-yl)imidazolidin-2-one

https://huagongshe.com/reaction/523527

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium hydrideHCID 24758—
Reactant1-(2-Chloroethyl)-3-(4-cyclopropylpyridin-3-yl)ureaHCID 86729663—
SolventChloroformHCID 6212—
SolventTetrahydrofuranHCID 8028—
Product1-(4-Cyclopropylpyridin-3-yl)imidazolidin-2-oneHCID 7098200794%

Reaction Steps

1-(2-Chloroethyl)-3-(4-cyclopropylpyridin-3-yl)urea (I-1c: 200 mg, 0.836 mmol) in dry THF was added drop wise to a stirred mixture of NaH (40.16 mg, 1.67 mmol) in dry THF (5 mL) at 0° C. over a period of 10 minutes. The resulting mixture was stirred at room temperature for 2 hours. The reaction was monitored by TLC (10% methanol in CHCl3). The reaction mixture was quenched with methanol and concentrated to afford the crude product. Purification by column chromatography on silica gel (2% methanol in CHCl3) afforded 140 mg of the product (94% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09339501B2
Source datasetuspto-grants-2016_05
ORD IDord-c07ad2eeaf2b45aea782000f7904015b
Source noteuspto-grants-2016_05