Bambus[n]urils: a New Family of Macrocyclic Anion Receptors
摘要:
A recently discovered anion receptor is Jointed by three related macrocycles differing in the number of glycoluril units and type of substitution. The synthesis is carried out in nonpolar solvents compared to aqueous media used in the case of the original macrocycle. The size of macrocycle Is controlled by a template. A hexameric macrocycle with benzyl substitution binds halide anions with an affinity exceeding 10(9) M(-1) while a tetrameric analog does not bind any of the investigated anions.
Bambusurils are recently developed neutral anion receptors that show a highaffinity towards many inorganic anions, not only in organic solvents but also in water. However, the number of water-soluble bambusurils and also those bearing functional groups is very limited. In this paper we report the synthesis of four- and six-membered bambusurils containing eight and twelve nitro groups. All the nitro
A recently discovered anion receptor is Jointed by three related macrocycles differing in the number of glycoluril units and type of substitution. The synthesis is carried out in nonpolar solvents compared to aqueous media used in the case of the original macrocycle. The size of macrocycle Is controlled by a template. A hexameric macrocycle with benzyl substitution binds halide anions with an affinity exceeding 10(9) M(-1) while a tetrameric analog does not bind any of the investigated anions.
Supramolecular binding and release of sulfide and hydrosulfide anions in water
作者:J. Vázquez、V. Sindelar
DOI:10.1039/c8cc00470f
日期:——
Bambusuril macrocycles bind and release sulfide and hydrosulfide anions in water.