title: A novel receptor based on a C3v-symmetrical PN3-calix[6]cryptand.
abstract: A C3v-symmetrical PN3-calix[6]cryptand was prepared in six steps from the known 1,3,5-tris-methylated calix[6]arene through a remarkably efficient [1 + 1] macrocyclization reaction. A 1H NMR study showed that the P,N-crypto cap rigidifies the whole edifice in a cone conformation ideal for molecular recognition applications. The ability of this new receptor to perform selective endo-complexation is illustrated with ammonium guests.
authors.affiliation: URCOM, Université du Havre, Faculté des Sciences et Techniques, 25 rue Philippe Lebon, BP 540, 76058 Le Havre Cedex, France.
authors.forename: Xianshun
authors.initials: X
authors.lastname: Zeng
authors.forename: Nicolas
authors.initials: N
authors.lastname: Hucher
authors.forename: Olivia
authors.initials: O
authors.lastname: Reinaud
authors.forename: Ivan
authors.initials: I
authors.lastname: Jabin