99700-26-2Relevant academic research and scientific papers
A practical synthesis of benzocrown ethers under phase-transfer catalysis conditions
Bogaschenko, Tatyana,Basok, Stepan,Kulygina, Catherine,Lyapunov, Alexander,Lukyanenko, Nikolay
, p. 2266 - 2270 (2007/10/03)
Convenient and effective procedures for the synthesis of benzo-12-crown-4, benzo-15-crown-5, benzo-18-crown-6, benzo-21-crown-7 and benzo-24-crown-8 under phase-transfer catalysis conditions have been developed.
Radiochemical stability of the dicyclohexano-18-crown-6 ether (DCH18C6): Synthesis and tests in radioactive medium of the DCH18C6 radiolytic products
Draye, Micheline,Favre-Reguillon, Alain,Chomel, Rodolph,Faure, Rene,Guy, Alain,Foos, Jacques,Lemaire, Marc
, p. 183 - 197 (2007/10/03)
The cis-syn-cis isomer of the dicyclohexano-18-crown-6 ether (DCH18C6) was subjected to hydrolysis and radiolysis with a 137Cs gamma source, at different doses of irradiation. The cis-syn-cis DCH18C6 radiolytic products previously identified [1], were synthesized in their different configurations. These radiolytic products, all of cis configuration, were tested on aqueous synthetic solutions of spent nuclear fuels. Experiments in radioactive medium showed that, under continuous extraction conditions, the cis-syn-cis DCH18C6 radiolytic products cannot perturb a reprocessing process using the DCH18C6 as selective extractant. Good prospects for the application of DCH18C6 to spent nuclear fuel reprocessing were therefore demonstrated. An X-ray crystallographic study of the DCH18C6 cis-syn-cis-isomer with uranyl nitrate was investigated. Elsevier,.
Multiple Benzo-fused Crown Ethers - Synthesis, Ion Selectivities in Membrane Electrodes and Inclusion of Water
Weber, Edwin
, p. 4439 - 4452 (2007/10/02)
New oligo-benzo-condensed crown-6 ligands 4, 6 - 9 having a different gradation of lipophilicity and of molecular rigidity are synthesized.For the known ligands 3 and 5 of similar constitution improved methods of preparation are described.The carrier efficiencies and ion selectivities of the various ligands for alkali and alkaline earth metal ions in liquid membrane electrodes of different composition are determined and discussed on the basis of the potentiometric selectivity factors lgKPotMgM.The possible behaviour of the new macrocycles in molecular inclusion is studied.A stable crystal lattice inclusion compound of 4 with water of composition 4*1/2 H2O is obtained.
