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Communication | Regular issue | Vol 55, No. 3, 2001, pp.447-451
Published online, 1st January, 1970
DOI: 10.3987/COM-00-9128
Synthesis of Crownophane Possessing Pyridine Moieties on the Aromatic Nuclei (Pyridine-Lariat Crownophane): A Crownophane Exhibiting Perfect Selectivity toward Ag+

Seiichi Inokuma, Koichi Kimura, Takashi Funaki, and Jun Nishimura*

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


A novel crown compound with two hydroxy groups on the aromatic nuclei was conveniently prepared by means of intramolecular [2 + 2] photocycloaddition of styrene derivertives. It was readily converted to the title compound (1). In the liquid-liquid extraction of heavy metal cations, 1 showed perfect selectively and high efficiency toward Ag+. From ESI-MS analysis, the compound was found to form a 1:1 with Ag+ ion in MeCN-H2O homogeneous system.