Two calix[4] arene derivatives (5 and 8) and their telomers are synthesized to estimate selective extraction of alkali and transition metal cations from the aqueous to the organic phase (chloroform). Compound 5 shows selectivity toward Hg 2Ο© . Compound 8 and telomers 6 and 9 are not selective but a
Synthesis, crystal structures and competitive binding property of a family of functionalized calix[4]arene ionophores
β Scribed by Vallu Ramakrishna; Subrata Patra; E. Suresh; Anjani K. Bhatt; Pragnya A. Bhatt; Amjad Hussain; Parimal Paul
- Book ID
- 116573124
- Publisher
- Elsevier Science
- Year
- 2012
- Tongue
- English
- Weight
- 706 KB
- Volume
- 22
- Category
- Article
- ISSN
- 1387-7003
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## Abstract Four __pβtert__βbutylcalix[4]arene derivatives with different Schiff base groups at the lower rim were efficiently prepared in three steps. __pβtert__βButylcalix[4]arene was firstly __Oβ__peralkylated with __Ο__βhaloalkylphthalimide in the system of NaH/DMF to give calixarene tetraalkyl
Two new polymers containing pendant calix[4]arene units with nitrile functionalities at their lower rim have been synthesized via radical initiated reactions involving a vinylic monomer 6 h5,11,17,23-tetra-tert-butyl-25,26,27-tris(cyanomethoxy)-28-(2-acryloyloxy) ethoxycalix[4]arenej and with styren