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Paper | Special issue | Vol 40, No. 1, 1995, pp.401-411
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S60
Synthesis of Thiacrownophanes Exhibiting High Ag+ Selectivities on the Liquid-Liquid Extraction

Seiichi Inokuma, Atsushi Kobayashi, Reiko Katoh, Toshiaki Yasuda, and Jun Nishimura

*Department of Chemistry, Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan


Thiacrownophanes (6-8) were prepared by means of intramolecular [2 + 2] photocycloaddition. Thiacrownophane (6) with two sulfur and three oxygen atoms showed the most efficient extractability toward Ag+ with high selectivity even if the extraction system did not contain any special lipophilic counter anion.