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Five new hydroxy-bearing dibenzoazacrown ethers were synthesized by a convenient route. Reaction of salicyladehyde with epichlorohydrin gave 1,3-bis(2-formylphenoxy)-2-propanol, which condensed with diamino compounds followed by a one pot reduction of the corresponding bis-imine derivatives without isolation to afford the hydroxy-bearing dibenzoazacrown ethers. All of the ligands were identified...
Five new nitrogen-oxygen mixed donor macrocycles have been prepared by condensation of N,N-bis[2-(2-formylphenoxy)ethyl]-4-methylphenylsulphonamide with diamino compounds, followed by a one-pot reduction of the intermediate bis-Schiff base. The transport of alkali metal ions across a liquid membrane using these macrocycles as ion carrier was studied, and the results show that the rates of cation...
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