Iodoethane → HCID 13772822, compound

Participants

Reaction Conditions

Reaction Steps

To 22.3 g (76.6 mmol) of the ethyl 7-acetyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylate in 900 ml of dimethylformamide was added 25.6 g (2.5 eq) of potassium carbonate and 22 ml (3.6 eq) of ethyl iodide. The mixture was stirred at 45° C. overnight. The mixture was concentrated. The residue was dissolved in water and extracted into dichloromethane. The dichloromethane was concentrated and the residual oil was purified by column chromatography on silica gel to give 10.5 g of ethyl 7-acetyl-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinoline carboxylate, mp 129°-130° C.

Provenance & Evidence