title: Calix[6]arene threading with weakly interacting tertiary ammonium axles: generation of chiral pseudorotaxane architectures.
abstract: The TFPB "superweak anion" effectively induces the threading of a scarcely preorganized calix[6]arene (1) with weakly interacting tertiary ammonium axles (2(+)-3(+)). The pseudorotaxanes (4(+)-5(+)) thus formed show an unexpected chirality due to an unprecedented formation of a threading-induced stereogenic ammonium center.
authors: Dipartimento di Chimica e Biologia, Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy.
authors: Carmen
authors: C
authors: Talotta
authors: Nicola Alessandro
authors: NA
authors: De Simone
authors: Carmine
authors: C
authors: Gaeta
authors: Placido
authors: P
authors: Neri