Trifluoroacetic acid → (7-(1H-imidazol-1-yl)-2-oxo-1,5-naphthyridin-1(2H)-yl)acetaldehyde

Participants

Reaction Conditions

Reaction Steps

To 0.12 g of 1-((1,3-dioxolan-2-yl)methyl)-7-(1H-imidazol-1-yl)-1,5-naphthyridin-2(1H)-one, 2 mL of an 80% aqueous trifluoroacetic acid solution was added at room temperature, and the mixture was stirred at 50 to 60° C. for 1 hour 30 minutes. The reaction mixture was cooled to room temperature, and the solvent was then distilled off under reduced pressure. The resultant residue was charged with chloroform and water and adjusted to pH 7.8 with a 20% aqueous sodium hydroxide solution. The organic layer was separated and the aqueous layer was extracted with chloroform, and then further extracted with ethyl acetate. The organic layer and the extract were combined, the resultant solution was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure to obtain 0.12 g of (7-(1H-imidazol-1-yl)-2-oxo-1,5-naphthyridin-1(2H)-yl)acetaldehyde as a yellow solid.

Provenance & Evidence