反应详情

To a suspension of 1.0 g (3.5 mmol) 3-iodo-5-nitroindole in 15 ml acetonitrile were added 0.16 g (6.7 mmol) sodium hydride (Aldrich 223441-50G). The stirring was continued and the suspension turned red. After 15 min. 2.02 g (5.2 mmol) 5-chloro-2-(4-methyl-benzoyloxymethyl)-3-(4-methyl-benzoyloxy)-tetrahydro-furan were added in small portions and the stirring was continued for another 60 minutes at room temperature. The precipitate was removed by filtration and washed once with acetonitrile. The combined yellow filtrates were concentrated until a product precipitated. For complete precipitation of the product 50 ml ethanol were added. The yellow precipitate was removed by filtration und washed with ethanol. The residuum was dried over phosphorus pentoxide and potassium hydroxide in a vacuum (yield: 1.9 g).

1. waitthe stirring was continued for another 60 minutes at room temperature
2. customThe precipitate was removed by filtration
3. washwashed once with acetonitrile
4. concentrationThe combined yellow filtrates were concentrated until a product
5. customprecipitated
6. customFor complete precipitation of the product 50 ml ethanol
7. additionwere added
8. customThe yellow precipitate was removed by filtration
9. washund washed with ethanol
10. dry with materialThe residuum was dried over phosphorus pentoxide and potassium hydroxide in a vacuum (yield: 1.9 g)