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 to give a crude product which is purified by flash chromatography (hexane/ethyl acetate) 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
3. customto give a crude product which
4. customis purified by flash chromatography (hexane/ethyl acetate)