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Communication | Special issue | Vol 47, No. 1, 1998, pp.101-106
Published online, 1st January, 1970
DOI: 10.3987/COM-97-S(N)34
Synthesis of Diazathia 15- and 18-Crown Ethers and Their Transport Properties for Metal Cations

Kiyoshi Matsumoto,* Masahiro Nogami, Mitsuo Toda, Hideki Katsura, Naoto Hayashi, and Rui Tamura

*Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan


A new series of the diazathia 15- and 18-crown ethers were prepared by high pressure SNAr reaction, in which various heteroaromatics were directly connected to their nitrogens. Liquid membrane transport studies demonstrated that the diazathia 18-crown ethers having benzothiazole, benzoxazole, and pyridine rings on their sidearms exhibited Hg2+ and Ag+ ion selectivity.