1,3-Butadienyl acetate → HCID 56987068, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl (1-methoxy-5,8 dioxo-tetrahydrobenzo [2,3-C] pyran-3-yl) ketone (100 mg, 0.450 mmol) and acetoxy butadiene (80 μg, 0.675 mmol) in dry benzene (5 mL) was heated for 3 hours at 60° C. under argon atmosphere. The solvent was then removed in vacuo and the resulting adduct was dissolved in 10 mL of toluene and then aromatized on silica gel by flash chromatography (toluene:ethyl acetate; 90%:10% followed by 70%:30%). Evaporation of the solvents gave 37 mg (31% yield) of pure titled compound.

Provenance & Evidence