Title of article
New amino-functionalized 1,3-alternate calix[4]arene bis- and mono-(benzo-crown-6 ethers) for pH-switched cesium nitrate extraction
Author/Authors
Gorbunova، نويسنده , , Maryna G. and Bonnesen، نويسنده , , Peter V. and Engle، نويسنده , , Nancy L. and Bazelaire، نويسنده , , Eve and Delmau، نويسنده , , Lوtitia H. and Moyer، نويسنده , , Bruce A.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2003
Pages
5
From page
5397
To page
5401
Abstract
Four calix[4]arene benzo-crown-6 ethers functionalized with primary amine groups in various positions have been synthesized. The cesium extraction behavior under alkaline and acidic conditions has been measured for these compounds and compared with that of non-amine containing analogs. Extraction strength when the amine group is neutral is not affected by the amino substituent, but protonation causes a marked decrease in extraction strength, permitting pH-switched back-extraction.
Journal title
Tetrahedron Letters
Serial Year
2003
Journal title
Tetrahedron Letters
Record number
1663021
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