SEARCH Articles Figures Tables 1,3-dipolar cycloaddition reactions salts 1.3- Diaza-2-azoniaallene salts cycloaddition 1.3- diaza-2-azoniaallene salts 3+2] cycloaddition reactions 2-Benzopyrylium salts, cycloaddition Alkynyl iodonium salts cycloadditions Benzothiopyrylium salts, polar 4 + 2-cycloaddition Iminium salts, cycloaddition Isoquinolinium salts cycloaddition Isoquinolinium salts cycloadditions Oxazolium salts 2 + 3] cycloadditions Pyrylium salts cycloaddition