Methanol → HCID 19788061, compound

Participants

Reaction Steps

A mixture of 1,2-dihydro-4-methyl-2-oxo-6-(2-propoxyphenyl)pyridine-3-carboxylic acid (0.75 g), methanol (50 ml) and concentrated sulfuric acid (0.5 ml) was heated under reflux for 6 hours. The residue left after evaporation was treated with water (30 ml) and potassium carbonate was added to pH 10. The resultant solid was washed with water and with ether to afford the title compound, 0.6 g, m.p. 167°-169° C.

Provenance & Evidence