Author/Authors :
Bortolini، نويسنده , , Olga and Nino، نويسنده , , Antonio De and Maiuolo، نويسنده , , Loredana and Russo، نويسنده , , Beatrice and Sindona، نويسنده , , Giovanni and Tocci، نويسنده , , Amedeo، نويسنده ,
Abstract :
1,3-Dipolar cycloadditions of nitrones with alkenes afforded the corresponding isoxazolidines in ionic liquids in the presence of Er(OTf)3. The ionic liquid and the catalyst are recycled up to five times without any specific treatment or loss of activity. Extension of the procedure to the synthesis of isoxazolidinyl nucleosides has been investigated.
Keywords :
1 , Isoxazolidines , Ionic liquids , Er(III) catalyst , 3-dipolar cycloadditions
