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Heptakis(6-deoxy-6-guanidino)-β-cyclodextrin: an artificial model for mitochondrial ADP/ATP carrier
Heptakis(6-deoxy-6-guanidino)-β-cyclodextrin, prepared by one-step reaction of heptakis(6-amino-6-deoxy)-β-cyclodextrin with 1H-pyrozolecarboxamidine, binds ADP/ATP very tightly.
Synthesis and selective anion recognition of imidazolium cyclophanes
Cyclophanes based on imidazolium or benzimidazolium groups were synthesized as anion recognition motifs by quaternarization of the bridged imidazole or benzimidazole compounds with dibromides inExpand
(ethylenediaminetetraacetic acid)cerium(IV) [Ceiv(EDTA)] complexes with dual hydrophobic binding sites as highly efficient catalysts for the hydrolysis of phosphodiesters
β-Cyclodextrin (β-CD) derivatives 1 with an amino group at C(6), C(3), or C(2) were homogeneously linked together by an ethylenediaminetetraacetic acid (EDTA) bridge (Scheme). Coordination of theExpand
Enantiodifferentiating [4+4] photocyclodimerization of 2-anthracenecarboxylate catalyzed by 6A,6X -diamino-6A,6X-dideoxy-γ-cyclodextrins: Manipulation of product chirality by electrostatic
Abstract 6A,6X-Dideoxy-6A,6X-diamino-γ-cyclodextrins (X = B, C, D and E) 5a–d were synthesized as chiral hosts for catalyzing the enantiodifferentiating [4 + 4] photocyclodimerization ofExpand
Guest-induced conformational change in a flexible host: mono- altro-β-cyclodextrin 1 Part 20 of the series Molecular Modeling of Saccharides. Part 19. [1] 1
Mono-altro--cyclodextrin 1 ,a -cyclodextrin with one of the seven glucose units being configurationally changed to an altrose, is shown to be a flexible host undergoing a distinct conformationalExpand
Functionalization of cyclodextrins via reactions of 2,3-anhydrocyclodextrins.
Three types of reactions of 2,3-anhydro-beta-cyclodextrins, namely nucleophilic ring-opening, reduction to 2-enopyranose, and reduction to 3-deoxypyranose, have been investigated to regio- andExpand
Cerium complexes of cyclodextrin dimers as efficient catalysts for luminol chemiluminescence reactions.
The chemiluminescence of a luminol-H(2)O(2) system is found to be remarkably enhanced by the Ce(IV) complexes of EDTA-bridged cyclodextrin dimers. The dimers were proved to work much more efficientlyExpand
Synthesis and binding behaviors of monomethyl cucurbit[6]uril
Abstract By reacting 3a-methylglycoluril and glycoluril with paraformaldehyde, monomethyl cucurbit[6]uril was synthesized in 14% yield. The new host molecule forms stable inclusion complexes withExpand
Crystal structure of mono[3-(2-imidazolylthio)]-altro-beta-cyclodextrin: elliptical distortion of the cavity and unique 'Yin-Yang' stacking.
The title compound is elliptically distorted due to the unusual 1C4 geometry of the altrose portion. In packing, a unique fourfold helical structure is elaborated with head-to-head dimers as theExpand
Amplification of the reactivity difference between two methylene groups of cyclodextrins via a cap
A novel concept has been established for making hetero-disubstituted cyclodextrin derivatives. Upon treatment with imidazole, 6A,6B-mesitylenedisulfonyl-capped β-cyclodextrin 1 demonstrated aExpand