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A Simple Synthesis and Determination of Alkali Metal Binding Selectivites of Chiral Macrocyclic Tetraamides Derived from L-alanine

Szczepańska A., Tarnowski P., Jurczak J.

Polish Journal of Chemistry

2005

Vol. 79 / nr 12

1909-1917

Chiral alfa,omega,-diamines react under high-pressure conditions (10 kbar) with alfa,omega,-dicarboxylates to give chiral cyclic tetraamides having C2-symmetry. The alkali metal (Li+, Na+, K+, Rb+, and Cs+ ) binding selectivities of tetraamides are evaluated by way of electrospray ionization mass spectrometry. The ralative binding selectivities are estimated from the mass spectral intensities of the metal complexes.