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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80128Generated: October 30, 2026

Methanol → 1-(3-Methyl-benzo[d]isoxazol-5-yl)-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one

https://huagongshe.com/reaction/80128

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantSodium hydrideHCID 24758—
Reactant1-[4-Fluoro-3-(1-hydroxyimino-ethyl)-phenyl]-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-oneHCID 86649396—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
Product1-(3-Methyl-benzo[d]isoxazol-5-yl)-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-oneHCID 4987225014.5%

Reaction Steps

1-[4-Fluoro-3-(1-hydroxyimino-ethyl)-phenyl]-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one (220 mg, 0.670 mmol) in DMF (5 mL) was added to a stirred mixture of NaH (19 mg, 0.804 mmol) in DMF (2 mL) under nitrogen atmosphere at 0° C. The resulting mixture was stirred at room temperature for 21 hours. The reaction was monitored by TLC (10% MeOH in CHCl3). The reaction mixture was partitioned between ethylacetate and ice water. The organic layer was washed with brine solution, dried over Na2SO4 and concentrated. Purification by column chromatography on silica gel (1% MeOH in CHCl3) afforded 28 mg of the product (14.5% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-f011e16d48004e1dac70ecdd91a06066
Source noteuspto-grants-2014_09