Abstract
We have already reported the self-assembly of macrocyclic boronic esters by simply mixing diboronic acids and tetrol with indacene skeleton under equilibrating conditions. In the present study, we demonstrate the construction of two types of boronic esters containing ferrocene moieties by controlling the equilibration of boronic ester formation. While ferrocene dimer was generated under the equilibrating conditions, ferrocene trimer could be constructed by mixing the appropriate precursors in acetone, where the equilibration of boronic ester formation was suppressed.
