146831-96-1Relevant articles and documents
Synthesis of new lipophilic acyclic di-ionizable polyethers, bis(crown ethers) and macrocyclic diamides
Elshani, Sadik,Wai, Chien M.,Natale,Bartsch, Richard A.
, p. 9425 - 9438 (2007/10/03)
A series of new lipophilic acyclic polyethers containing two carboxylic or hydroxamic acid groups have been prepared. From lipophilic acyclic polyether dicarboxylic acids 2, 9 and 13, the bis(crown ethers) 20-25 were synthesized. From lipophilic acyclic polyether dicarboxylic acids 10-12 and 14, the new macrocyclic diamides 26-32 were prepared in high yields without the use of high dilution techniques or template effects.
Separation of 90Y from 90Sr by solvent extraction with ionizable crown ethers
Wood, Donald J.,Elshani,Du,Natale,Wai
, p. 1350 - 1354 (2007/10/02)
sym-Dibenzo-16-crown-5-oxyacetic acid and its analogues are selective for the extraction of Y3+ over Sr2+ from aqueous solutions into chloroform. The selectivity and the pH range of extraction are influenced by the structure of the l