New tetraheterocyclic macrocycles containing triazole, pyrazole, pyridine, and/or furan subunits. Synthesis and cation-binding properties

…, C Marzin, O Najimi, V Pellegrin

Index: Tarrago, Georges; Marzin, Claude; Najimi, Ouafa; Pellegrin, Valdo Journal of Organic Chemistry, 1990 , vol. 55, # 2 p. 420 - 425

Full Text: HTML

Citation Number: 42

Abstract

Ten new tetraheterocyclic macrocyclic ligands 2-4 in the porphyrinogen series were prepared. Their structures differ from 1 in (1) the type of junction between hetrocycles (NCH2C or CCH2C),(2) the donor nature of the complexation sites,(3) the five-or six- membered geometry of the included heterocycles, and (4) their symmetry. The capabilities of 2-4 for extraction and transport of alkali metal and NH4+ cations were less than those of 1. ...