Benzyl Chloride → HCID 178469672, compound

Participants

Reaction Steps

To a stirred solution of ethyl 6,7-difluoro-4,8-dihydroxy-3-quinolinecarboxylate (300 mg) in dry dimethylformamide (6 ml), was added anhydrous potassium carbonate (308 mg) and then benzyl chloride (145 μl). The mixture was stirred at 55°-65° C. for 11 hours. The reaction mixture was diluted with water (30 ml) and extracted with chloroform. The extract was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was chromatographed on silica gel (7 g) using acetone/chloroform (1:20) as an eluent to give 113 mg of ethyl 8-benzyloxy-6,7-difluoro-4-hydroxy-3-quinolinecarboxylate, mp 200°-201° C.; MS m/z 359 (M+), after recrystallization from methanol.

Provenance & Evidence