ORGN 21 |
New amino-functionalized 1,3-alternate calix[4]arene bis-and mono-(benzo-crown-6-ethers)
| Maryna G. Gorbunova, Peter V. Bonnesen, Nancy L. Engle, Eve Bazelaire, Lætitia H. Delmau, and Bruce A. Moyer. Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, MS-6119, Oak Ridge, TN 37831-6119 |
We have recently become interested in calix[4]arene crown-6-ethers with pendant primary amines as building blocks for more complex molecules that might find utility in a number of applications, among them metal ion separation by solvent extraction. New calix[4]arene crown-6-ethers with amino groups attached to the crown-ether moiety, to the alkoxy substituents, and to the calixarene unit were synthesized. Preliminary evaluation of the cesium extraction behavior under alkaline and acidic conditions has been carried out for these compounds and compared with that of their analogs without amino groups.  |
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