Synthesis and evaluation of extraction ability of calix[4]-crown-6 cone conformer and its oligomeric analogue |
| |
| Affiliation: | 1. Department of Chemistry, Selçuk University, 42031 Konya, Turkey;2. Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA;1. Central Ground Water Board, Patna, India;2. Department of Applied Geology, Indian Institute of Technology(Indian School of Mines), Dhanbad, India;3. Central Mine Planning and Design Institute Limited, Bilaspur, India;1. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, PR China;2. Shandong Institute for Food and Drug Control, Jinan 250101, PR China;3. School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China |
| |
| Abstract: | The synthesis of the cone conformers of 5,11,17,23-tetra-tert-butyl-25,27-bis(4-nitrobenzyloxy)-26,28-dihydroxy]-calix4]-arene (2), 5,11,17,23-tetra-tert-butyl-25,27-bis(4-nitrobenzyloxy)]calix4]arene-crown-6 (3) and 5,11,17,23-tetra-tert-butyl-25,27-bis(4-aminobenzyloxy)]calix4]arene-crown-6 (4) containing polymerizable side arms, along with their oligomeric analogue 5, is reported. Extraction studies with monomers 3 and 4 and the oligomer 5 show no difference in their extraction behavior and selectivity, whereas, ionophore 2 is a poor extractant for alkali metal cations. These observations suggest that, substitution of side arms on the lower rim of calix moiety can enhance the calix4]-crown-6 cone conformers function to extract alkali metal cations in two phase extraction systems. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
