Several new 3-hydroxysubstituted pyrrolidinones and pyrrolidines with a long-polyolic chain were prepared from chiral isoxazolidines. The cycloaddition of the chiral nitrone 4 derived from D-xylose with methyl acrylate p...
Ring-closing metathesis reactions of dialkenyl amines, amides and carbamates catalyzed by Ru-catalysts provide efficient approaches to six-membered nitrogen heterocyclic compounds, which are precursors of a variety of na...