SEARCH Articles Figures Tables 1,3-cycloaddition intramolecular Alkenes 2+2]cycloaddition Alkenes azomethine ylides Alkenes intramolecular cycloadditions Alkenes, cycloadditions Alkenes, intramolecular Azomethine ylide cycloaddition Azomethine ylide cycloadditions Azomethine ylide cycloadditions intramolecular Azomethine ylides cycloaddition Azomethine ylides intramolecular cycloadditions Azomethines, cycloaddition Ylides cycloaddition