反应详情

To a solution of (1R*,5S*)-1-methyl-8-oxabicyclo[3.2.1]oct-6-ene-2,4-dione (12.0 g, 0.079 mol) in ethyl acetate (100 ml) is added 10% palladium on carbon (2.4 g), followed by stirring under a 1 bar hydrogen atmosphere for 24 hours. The reaction mixture is then filtered through diatomaceous earth and concentrated under reduced pressure. The residue is purified by column chromatography on silica gel to afford (1R*,5S*)-1-methyl-8-oxabicyclo[3.2.1]octane-2,4-dione (6.90 g) as pale yellow solid.

1. filtrationThe reaction mixture is then filtered through diatomaceous earth
2. concentrationconcentrated under reduced pressure
3. customThe residue is purified by column chromatography on silica gel