Synthesis and Complex-Forming Properties of N-Substituted Diazacrown Ethers
摘要:
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.
Direct correlation of cation binding strengths to Hammett parameters in substituted N-benzylaza-15-crown-5 lariat ether and N,N'-dibenzyl-4,13-diaza-18-crown-6 BiBLE derivatives
作者:Deborah A. Gustowski、Vincent J. Gatto、Jesus Mallen、Luis Echegoyen、George W. Gokel