Synthesis and binding studies of novel thiacalixpodands and bisthiacalixarenes having O,O″-dialkylated thiacalix[4]arene unit(s) of 1,3-alternate conformation

Vandana Bhalla, J. Nagendra Babu, Manoj Kumar, Tetsutaro Hattori, Sotaro Miyano

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A series of thiacalixpodands and bisthiacalixarenes with imine units have been prepared by condensation of O,O″-bis(2-aminoethyl)-O′,O‴-dipropyl-p-tert-butylthiacalix[4]arene of 1,3-alternate conformation with different aromatic (di)aldehydes. The molecules derived from pyridine-2-carbaldehyde and -2,6-dicarbaldehyde quantitatively extract silver ion from aqueous into organic phase with complete selectivity over other metal ions (Na+, K+ and Cs+) under neutral conditions. The former compound forms a 1:2 (L:M) complex with silver ion as proved by NMR spectroscopy, Job's plot and X-ray crystallography.

Original languageEnglish
Pages (from-to)1581-1585
Number of pages5
JournalTetrahedron Letters
Volume48
Issue number9
DOIs
Publication statusPublished - 2007 Feb 26

Keywords

  • Bisthiacalixarene
  • Calixpodand
  • Complexation
  • Solvent extraction

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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