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Synlett 2000; 2000(1): 41-44
DOI: 10.1055/s-2000-6470
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New Calixcrown-type Ionophores Derived from All Possible Regioisomers of Rigid Calix[4]arene

Yukihiro Okada* , Manabu Mizutani, Fuyuhiko Ishii, Jun Nishimura
  • *Department of Chemistry, Gunma University, Tenjin-cho, Kiryu 376-8515, Japan; Fax + 81-277-30-1314; E-mail: nisimura@chem.gunma-u.ac.jp
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Publication Date:
31 December 2000 (online)

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Three regioisomers attaching diisopropyl groups of rigid calix[4]arene analog were prepared by the two synthetic methods. They were successfully transformed to new ionophores having different size of crown ethers. The new ionophores selectively extracted the alkali metal ions.

calixarene - ionophore - cyclophane - ion extraction - alkali metal - regioisomer