Organoiron complexes in organic synthesis. Part 18. Spiroannelation reactions of some bifunctional tricarbonyl(cyclohexadienyl)iron hexafluorophosphate salts

Abstract
The synthesis of tricarbonyl(cyclohexadienylium)iron salts containing tosyloxy-substituents in the lateral chain, and their reactions with nucleophiles to give spirocyclic compounds, is described. The synthesis and spiroannelation reactions of complexes with gem-dinitrile and cyanoester groups in the lateral chain are presented.
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