HCID 21485432, compound → 2-Ethylcyclopentane-1,3-dione

Participants

Reaction Steps

Reflux 6-(3,5-dimethoxyphenyl)hex-1-en-3-one, containing a small amount of 6-(3,5-dimethoxyphenyl)-1-diethylaminohexan-3-one (6 g, produced by slow distillation of the latter substance) with 2-ethylcyclopentane-1,3-dione (3.5 g) in 0.12% anhydrous methanolic potassium hyroxide (10 cc) for 10 hours. Work up the reaction mixture as for the preparation of 2-(6 -m-acetoxyphenyl-3-oxohexyl)-2-methylcyclopentane-1,3-dione to obtain 2-[6-(3,5-dimethoxyphenyl)-3-oxohexyl]-2-ethylcyclopentane-1,3-dione as a viscous gum; infrared absorption peaks at 5.80, 6.25 μ (split peak).

Provenance & Evidence