Synthesis and complexation with cations of alkali and alkaline earth metals of new molecular clips based on diphenylglycoluril and benzoazacrown ethers

Purpose. To expand knowledge about the structure and properties of macroheterocyclic compounds.

Application area. Chemical industry.

Advantages. There are no analogues in Ukraine. The results obtained significantly expand knowledge about the structure and properties of macroheterocyclic compounds and in their significance correspond to the world level.

Description. The interaction of bis-etherphenylglycoluril with benzoaz-15-crown-5 derivatives in polyphosphate acid was studied and bis(benzoazacrown-ethers) with diphenylglycoluril fragments were obtained for the first time. The use of benzoase-15-crown-5 with an unsubstituted nitrogen atom gives a low yield of the target product. The introduction of substituents at the Nitrogen atom makes it possible to increase the yield to 40-42%. Using spectrophotometric titration it was shown that bis(benzoazacrown-ether) with a methyl group on the Nitrogen atom forms only 1:1 complexes with cations of alkali and alkaline earth metals. It was concluded that intramolecular sandwich complexes are formed with potassium and rubidium cations.

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