反应详情

A mixture of benzyl 6-(2,2,2-trifluoro-1-hydroxyethyl)-3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate (26 mg), 10% palladium on charcoal (25 mg), sodium bicarbonate (4.5 mg), dioxane (2 ml) and water (1 ml) is hydrogenated at 40 psi for 30 mins. The mixture is filtered to remove the catalyst which is washed with several portions of water (3×2 ml). The combined filtrate is extracted with ethyl acetate (2×2 ml), concentrated in vacuo to ca. 2 ml, and lyophilized to provide sodium 6-(2,2,2-trifluoro-1-hydroxyethyl)-3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate.

1. filtrationThe mixture is filtered
2. customto remove the catalyst which
3. washis washed with several portions of water (3×2 ml)
4. extractionThe combined filtrate is extracted with ethyl acetate (2×2 ml)
5. concentrationconcentrated in vacuo to ca. 2 ml