[1+1] and [2+2] crown ethers derived from N,N-bis(2-hydroxyalkylbenzyl)alkylamine and their inclusion phenomena with metal ions

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作者
Thitiporn Rungsimanon
Apirat Laobuthee
Mikiji Miyata
Suwabun Chirachanchai
机构
[1] Chulalongkorn University,The Petroleum and Petrochemical College
[2] Kasetsart University,Department of Materials Engineering, Faculty of Engineering
[3] Osaka University,Department of Material and Life Science, Graduate School of Engineering
关键词
,; -bis(2-hydroxyalkylbenzyl)alkylamine; Benzoxazine; Ditosylated compound; Pedersen’s technique; Macrocycle;
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摘要
N,N-bis(2-hydroxyalkylbenzyl)alkylamine (HBA) is a derivative obtained from a single time ring opening of benzoxazines. For HBA with methyl group at ortho and para positions, and at N atom, the reaction between this derivative and ditosylated compound gives [1+1] dibenzo-monoaza-crowns. For HBA without methyl group at ortho position, the compound gives [2+2] macrocyclic ethers. The studies on inclusion phenomena using Pedersen’s and molar ratio techniques clarify the alkali metal ion guest inclusion to be 2:1 for [2+2] and 5:2 for [1+1] macrocycles.
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页码:333 / 338
页数:5
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