Ion-extraction by a crown ether with a photoresponsive carboxylate cap.

Seiji Shinkai, Kazuyoshi Shigematsu, Toshiyuki Ogawa, Takahide Minami, Osamu Manabe

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


A new photoresponsive crown ether (I) with an azobenzene-4-oxyacetate function was synthesized. The photo-isomerized cis-(1) extracted K+ ion more selectively than trans-(I) and the thermal cis-trans isomerization was suppressed by added metal ions.

Original languageEnglish
Pages (from-to)4463-4466
Number of pages4
JournalTetrahedron Letters
Issue number46
Publication statusPublished - 1980
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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