Ethanol → Ethyl 6-chloronicotinate

Participants

Reaction Steps

6-Chloronicotinic acid (1.6 g, 10.0 mmol) was dissolved in ethanol. Concentrated sulfuric acid (0.5 ml) was added to the solution, and the mixture was refluxed overnight. The reaction solution was concentrated under the reduced pressure. The residue was diluted with methylene chloride and was then washed with water, followed by drying over anhydrous magnesium sulfate. The solvent was removed by distillation under the reduced pressure. The residue was purified by column chromatography on silica gel (development system, n-hexane:ethyl acetate=5:1) to give ethyl 6-chloronicotinate 1.6 g (yield 84%) as a colorless oil.

Provenance & Evidence