Cyclohexadiene iodonium

Sonochemically induced cation radical intramolecular cyclization upon the action of an iodonium salt was also demonstrated (Arizawa and others 2001). Being oxidized with phenyliodonium bis(trifluoroacetate), l-(3-anisyl)-2-(l,3-cyclohexadien-2-yl) ethane forms the cation-radical and then 5 -methoxyspiro[cycloxehane-l,l -indan]-2,6-dione. The yield of this final product is high enough. 

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