SEARCH Articles Figures Tables 1,3-cycloaddition intramolecular 5-Membered rings oxidation Cycloaddition oxide Cycloadditions oxidative Cycloadditions rings Five-membered ring Intramolecular nitrile oxide cycloaddition Nitrile oxide cycloaddition Nitrile oxides Nitrile oxides cycloadditions Nitrile oxides intramolecular cycloadditions Nitriles cycloaddition Nitriles cycloadditions Nitriles intramolecular Nitriles nitrile oxides Oxidation intramolecular Oxidative cycloaddition Oxidative intramolecular Oxidative nitriles Oxide ring