Diketene → HCID 14988341, compound

Participants

Reaction Steps

A mixture of 9 g of 4(E)-(1-ethoxyethoxy)-cinnamyl alcohol and 0.5 ml of triethylamine was heated at 70°-80° C., and 6 g of diketene was slowly added dropwise thereto. After the addition was finished, the reaction mixture was heated at 110°-120° C. for 30 minutes. After the reaction was completed, the solvent was removed by evaporation under a reduced pressure, and the residue thus obtained was purified by means of a silica gel column chromatography (eluent: diethyl ether: n-hexane=1:3) to yield 8.8 g of 4(E)-(1-ethoxyethoxy)cinnamyl acetoacetate. Refractive index: D24 1.5305

Provenance & Evidence