Sodium Iodide → 2-[3-Carboxypropyloxy]-dibenzofuran

Beteiligte Stoffe

Reaktionsschritte

2-Hydroxydibenzofuran (0.5 gm, 2.7 mmol), ethylbromobutyrate (0.78 mL, 5.4 mmol), potassium carbonate (1.1 gm, 8.1 mmol), and sodium iodide (10 mg) were combined in 2-butanone (15 mL). The reaction was refluxed until complete, then the reaction filtered and the solvent removed under reduced pressure. The residue was taken up in 6M aqueous KOH/methanol, 1:1. After the hydrolysis was complete the reaction was acidified to pH 3 and the product extracted with ethyl acetate. The residue was purified by column chromatography (silica gel, ethyl acetate/hexanes/acetic acid, 10:30:60:0.5). The yield was 0.52 gm of product. Mass spectrum: DCI/NH3, (m+H)+ @ m/z 271, (m+NH4)+ @ m/z 288, (m+NH4 ·NH3)+ @ m/z 305.

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