Sulfuric Acid → HCID 14623682, compound

Participants

Reaction Steps

A solution of chromium trioxide (6.5 g) in acetic anhydride (29 ml) was added dropwise to a stirred, cooled solution of 6-(4-n-propylphenyl)pyridazin-3(2H)-one (5.11 g) in acetic anhydride (25 ml) containing concentrated sulphuric acid (5 ml). The reaction mixture was stirred at room temperature for 16 hours and then poured into crushed ice (250 ml) to afford 6-(4-propionylphenyl)pyridazin-3(2H)-one (0.78 g), m.p. 202°-205° C.

Provenance & Evidence