反应详情

A solution of 6.7 g. of 9-(3-aminopropyl)-9-aminocarbonylfluorene (preparedas described in Example 29) in 90 ml. of ethanol containing 1.6 g. of acetone was stirred at 40° C. for sixteen hours. The reaction mixture was then hydrogenated for two hours at ambient temperature in the presence of 2.0 g. of 5% palladium on carbon and hydrogen at a pressure of60 psi. The reaction mixture next was filtered and the solvent was removed from the filtrate by evaporation to provide a foam. The foam was dissolvedin ethyl acetate and then extracted into 1 N hydrochloric acid. The aqueousacid layer was separated, made alkaline with 50% sodium hydroxide, and the product was extracted into fresh ethyl acetate. The organic extracts were combined, washed with water, dried, and the solvent was removed by evaporation under reduced pressure to provide 9-(3-isopropylaminopropyl)-9-aminocarbonylfluorene identical to that obtained in Example 27.

1. filtrationThe reaction mixture next was filtered
2. customthe solvent was removed from the filtrate by evaporation
3. customto provide a foam
4. extractionextracted into 1 N hydrochloric acid
5. customThe aqueousacid layer was separated
6. extractionthe product was extracted into fresh ethyl acetate
7. washwashed with water
8. customdried
9. customthe solvent was removed by evaporation under reduced pressure