Abstract N-Substituted mono-and diazacrown ether with ethoxycarbonylmethyl, 7-phenyl-3, 6-dioxaheptyl, p-methoxy, and p-nitrobenzyl groups in the side chain have been synthesized. Their reactions with alkali and alkaline-earth metals have been studied. Substituents affect the complex-forming ability of the “base” macrocycle by changing the basicity of the nitrogen atoms and coordinating with the complexing ion.
![13-[(4-nitrophenyl)methyl]-1,4,7,10-tetraoxa-13-azacyclopentadecane Structure](https://image.chemsrc.com/caspic/074/88548-60-1.png)