A general mode to obtain endo-complexation and through-the-annulus threading of scarcely efficient macrocyclic hosts was obtained by exploiting the inducing effect of the weakly coordinating tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB) anion that gives free “naked” cations. This method works very well with simple, conformationally mobile calix[6-7]arene ethers, which give conformationally blocked endocalix or [2]pseudorotaxane complexes.
endo-Cavity Complexation and Through-the-Annulus Threading of Large Calixarenes Induced by Very Loose Alkylammonium Ion Pairs
GAETA, CARMINE;TROISI, FRANCESCO;NERI, Placido
2010-01-01
Abstract
A general mode to obtain endo-complexation and through-the-annulus threading of scarcely efficient macrocyclic hosts was obtained by exploiting the inducing effect of the weakly coordinating tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB) anion that gives free “naked” cations. This method works very well with simple, conformationally mobile calix[6-7]arene ethers, which give conformationally blocked endocalix or [2]pseudorotaxane complexes.File in questo prodotto:
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