title: Use of residual dipolar couplings in conformational analysis of meta-disubstituted calix[4]arenes.
abstract: Dimercuration of tetrapropoxy calix[4]arene followed by a reaction with isoamyl nitrite afforded dinitroso regioisomers with unique substitution patterns. The unusual conformational behaviour of these inherently chiral systems was revealed by the combination of dynamic NMR and residual dipolar coupling (RDC) techniques.
authors.affiliation: Laboratory of NMR Spectroscopy, Institute of Chemical Technology Prague (ICTP), Technická 5, 166 28, Prague 6, Czech Republic. dvorakoh@vscht.cz.
authors.forename: Lukáš
authors.initials: L
authors.lastname: Vrzal
authors.forename: Karolína
authors.initials: K
authors.lastname: Flídrová
authors.forename: Tomáš
authors.initials: T
authors.lastname: Tobrman
authors.forename: Hana
authors.initials: H
authors.lastname: Dvořáková
authors.forename: Pavel
authors.initials: P
authors.lastname: Lhoták