Hydrochloric Acid → 4-Nitrophenylglyoxylic acid

Reaktionsgleichung

[OH-].[Na+].[N+:3]([C:6]1[CH:11]=[CH:10][C:9]([C:12](=[O:18])[C:13]([O:15]CC)=[O:14])=[CH:8][CH:7]=1)([O-:5])=[O:4].Cl>CO>[N+:3]([C:6]1[CH:7]=[CH:8][C:9]([C:12](=[O:18])[C:13]([OH:15])=[O:14])=[CH:10][CH:11]=1)([O-:5])=[O:4]

Komponenten

Versuchsvorschrift

3 ml (6 mmol) of a 2N aqueous solution of sodium hydroxide were added to a solution of 651 mg (2.92 mmol) of ethyl 4-nitrophenylglyoxylate in methanol, and the resulting mixture was stirred overnight at room temperature. The reaction mixture was poured into 2N hydrochloric acid and extracted with ethyl acetate. The extract was washed with a saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate. The solvent was distilled off, to give 0.8 g (quantitative yield) of 4-nitrophenylglyoxylic acid as a crude product.