6533b85afe1ef96bd12b9477

RESEARCH PRODUCT

CMPO-substituted calix[6]- and calix[8]arene extractants for the separation of An3+/Ln3+ from radioactive waste

Alessandro CasnatiJean-françois DozolKarine LigerVolker BöhmerMarco FontanellaRocco UngaroMohamed SaadiouiFrancesco Sansone

subject

chemistry.chemical_compoundAqueous solutionchemistryNitric acidOrganic ChemistryDrug DiscoveryExtraction (chemistry)CalixareneEtherSelectivityBiochemistryMedicinal chemistryNuclear chemistry

description

Abstract Three calix[6]arene derivatives ( 1a – c ) and two calix[8]arene derivatives ( 2a , b ), with six and eight CMPO residues, respectively, attached to the narrow/lower rim via ether links, were synthesised. Preliminary liquid–liquid extraction studies for Eu(III) and Am(III) from aqueous nitric acid to o -nitrophenylhexyl ether reveal remarkable properties with respect to efficiency and selectivity, especially for the tert -butylcalix[6]arene derivative with a –(CH 2 ) 3 – spacer.

https://doi.org/10.1016/j.tet.2006.05.009