title: Regioselective alkylation of a methylene group via meta-bridging of calix[4]arenes.
abstract: The meta-iodo derivative, fixed in the cone conformation, enables the gram-scale preparation of a meta-bridged calix[4]arene. This intermediate, possessing a fluorene moiety within the macrocyclic skeleton, can be regioselectively alkylated on the corresponding methylene bridge to form a unique substitution pattern in classical calixarene chemistry.
authors: Department of Organic Chemistry, Institute of Chemical Technology Prague (ICTP), Technicka 5, 166 28, Prague 6, Czech Republic. lhotakp@vscht.cz.
authors: Petr
authors: P
authors: Slavík
authors: Hana
authors: H
authors: Dvořáková
authors: Václav
authors: V
authors: Eigner
authors: Pavel
authors: P
authors: Lhoták