SEARCH Articles Figures Tables Cation 2 + 2-cycloaddition Cation cycloadditions Cycloadditions of the Oxyallyl Cation Cycloadditions with Oxyallyl Cations Oxyallyl cation Oxyallyl cations 4 + 3] cycloaddition reactions Oxyallyl cations, cycloaddition Oxyallyl cations, cycloaddition