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Calix[4]arene-bis(dibenzocrown-6-ethers) with one proton-ionizable group

✍ Scribed by Vladimir S. Talanov; Galina G. Talanova; Maryna G. Gorbunova; Richard A. Bartsch

Book ID
104250522
Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
87 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis

Two 1,3-alternate calix [4]arene-biscrowns with one proton-ionizable group and two dibenzocrown-6-ether units are synthesized. The compounds exhibit high Cs + extraction efficiency and selectivity. Cs + /Na + and Cs + /K + selectivities for the new N-(trifluoromethylsulfonyl)carbamoyl-substituted calix[4]arene-bis(dibenzocrown-6) are found to be higher than those for an analog with no benzo group substituents in the crown ether units.

πŸ“œ SIMILAR VOLUMES

New proton-ionizable, cesium-selective c
New proton-ionizable, cesium-selective calix[4]arene-bis(crown-6-ethers) with markedly enhanced extraction efficiency
✍ Vladimir S. Talanov; Galina G. Talanova; Richard A. Bartsch πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 French βš– 68 KB

The first 1,3-alternate calix[4]arene-bis(crown-6-ethers) with a proton-ionizable group located in front of one crown ether cavity are synthesized. Compared with an analog that has no proton-ionizable group, the two new ligands possess markedly higher Cs + extraction efficiency.

ChemInform Abstract: New Proton-Ionizabl
ChemInform Abstract: New Proton-Ionizable, Cesium-Selective Calix[4]arene-bis(crown-6-ethers) with Markedly Enhanced Extraction Efficiency
✍ Vladimir S. Talanov; Galina G. Talanova; Richard A. Bartsch πŸ“‚ Article πŸ“… 2001 πŸ› John Wiley and Sons βš– 28 KB πŸ‘ 2 views

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