Methanol → 1-[4-Fluoro-3-(1-hydroxyimino-ethyl)-phenyl]-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one

Participants

Reaction Steps

LCMS purity: 99.03%, m/z=314.0 (M+1) Hydroxylamine hydrochloride (145 mg, 2.106 mmol) in pyridine (5 mL) was added to 1-(3-acetyl-4-fluoro-phenyl)-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one (220 mg, 0.702 mmol) under nitrogen atmosphere. The resulting mixture was stirred at room temperature for 18 hours. The reaction was monitored by TLC (10% MeOH in CHCl3). The reaction mixture was partitioned between ethylacetate and water. The organic layer was dried over Na2SO4 and concentrated to afford 220 mg of 1-[4-Fluoro-3-(1-hydroxyimino-ethyl)-phenyl]-3-(4-methyl-pyridin-3-yl)-imidazolidin-2-one (90% yield).

Provenance & Evidence