Synthesis and UV-Visible complexation study of 1- pyrazolylbenzimidazol-2-one polyether macrocyclic derivatives
نویسندگان
چکیده
A new polyether macrocyclic of 1-pyrazolylbenzimidazol-2-ones 5-6 have been synthesized by the reaction of dichloro(poly)ethylene glycol in phase transfer catalysis conditions. The structure of these compounds were identified by H NMR, C NMR, IR spectroscopy and Mass spectrometry. The formation of Li, Na, and K complexes with compounds 5-6 has been investigated by UV-visible spectroscopy. It was demonstrated that ligand 5 form preferential complex with Li cation.
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