Hydrochloric Acid → HCID 68576495, compound

Participants

Reaction Steps

A solution of ethyl 4-bromo-8-fluoro-6-(methoxy)-3-quinolinecarboxylate (12.2 g, 37.3 mmol) in tetrahydrofuran (450 mL) was diluted by addition of a solution of sodium hydroxide 2N (27 mL) in water (75 mL). The reaction mixture was stirred overnight at room temperature then acidified to pH 3 with a solution of hydrogen chloride 5N. The solvents were evaporated to half the volume in vacuo. The reaction mixture was acidified to pH 1 by further addition of hydrogen chloride 5N, cooled to 4° C. for 30 minutes then filtered. The precipitate was dried in vacuo to afford the product as a white solid (10.1 g, 90%); MS (+ve ion electrospray) m/z 301 (MH+).

Provenance & Evidence