Synthesis, structure, and extraction ability of tetrasubstituted thiacalix[4]arenes with crown ether fragments on the lower rim

Abstract

Synthesis of ω-bromoalkoxy derivatives of thiacalix-monocrown ethers in 1,3-alternate conformation was performed. The complexation ability of synthesized macrocycles towards alkali metal cations was investigated by two-phase extraction method. © ISUCT Publishing.