Sodium Hydroxide → 1-Isobutyl-2-oxo-1,2-dihydropyridine-4-carboxylic acid

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Reaction Steps

A 2M aqueous solution of sodium hydroxide (5.38 ml, 10.75 mmol) was added to a solution of methyl 1-(2-methylpropyl)-2-oxo-1,2-dihydro-4-pyridinecarboxylate (D27; 0.45 g, 2.151 mmol) in methanol (10 ml). The mixture was stirred at room temperature for 2 hrs and then the solvent was removed under vacuum. The residue was taken up with water, neutralised with 2M HCl and extracted with ethyl acetate. The organic layer was washed with water, dried over magnesium sulphate and concentrated under vacuum to give the title compound as a white solid (400 mg).

Provenance & Evidence