Potassium Iodide → HCID 56986565, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-[7-fluoro-2H-1,4-benzoxazin-3(4H)-on-6-yl]-5-isopropylidene-1,3-oxazolidine-2,4-dione (1.1 g), potassium carbonate (0.3 g) and potassium iodide (0.1 g) in N,N-dimethylformamide (50 ml), 1-bromo-2-butene (0.5 g) was added, followed by heating at 70° C. for 4 hours. The reaction mixture was allowed to cool, combined with water and extracted with ethyl acetate. The organic layer was purified by silica gel column chromatography to give Compound No. 8 (1.0 g).

Provenance & Evidence