New host molecules based on the thiacalix[4]arene platform for cation recognition

Abstract

The synthesis of four new tetra-and di-carbonyl p-tert-butyl thiacalix[4]arenes is reported. The three tetracarbonyl compounds differ as conformational isomers (cone, partial cone, and 1,3-alternate). The influence of the alkali metal ion templates on the formation of the different conformational isomers of the compound was studied by the solvent extraction method. © 2005 Springer Science+Business Media, Inc.