Water → HCID 18368118, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of sodium hydride (60% w/w dispersion in mineral oil, 390 mg, 8.8 mmol) in DMF (20 ml) was added a solution of 4-chloro-2-(ethoxycarbonylamino)benzonitrile (step 1, 2 g, 8.8 mmol) in DMF (5 ml) at 0° C. After stirring for 1 h at 0° C., 3-acetoxymethyl-2-(bromoacetyl)furan (step 1, 2.3 g, 8.8 mmol) was added and the resulting mixture was stirred at room temperature for an additional 6 h. The mixture was poured into water (100 ml), and extracted with ethyl acetate (300 ml). The organic extract was washed with saturated aqueous sodium bicarbonate (100 ml), brine (100 ml), and then dried (MgSO4) and concentrated. The residue was diluted with a mixture of ethanol (20 ml) and water (10 ml), and then potassium carbonate (ca. 2 g) was added. After stirring for 6 h, the mixture was poured into a saturated aqueous ammonium chloride (100 ml) and the mixture extracted with ethyl acetate (300 ml). The organic extract was washed with brine (100 ml), dried (MgSO4) and concentrated. The residue was purified by flash column chromatography eluting with ethyl acetate/hexane (2/1) to give 505 mg (16%) of the titled compound as yellow solids. Mass; M+=362

Provenance & Evidence