Methanol → HCID 86736428, compound

Participants

Reaction Steps

To a solution of 2.3 g of 6-fluoro-1,4-dihydro-8-methyl-4-oxo-1-(2,2,2-trifluoroethyl)-3-quinolinecarboxylic acid in 25 ml of pyridine, at 0°, was added 1.1 ml of thionyl chloride. The resulting slurry was stirred at room temperature for 0.5 hour and subsequently treated with 5 ml of methanol. After 1 hour, the reaction mixture was poured into 200 ml of water; the resulting white solid was filtered, washed with water, and dried to give 2.0 g of 6-fluoro-1,4-dihydro-8-methyl-4-oxo-1-(2,2,2-trifluoroethyl)-3-quinolinecarboxylic acid, methyl ester, m.p. 168°-171°.

Provenance & Evidence