Intramolecularly Hydrogen-Bonded Aromatic Pentamers as Modularly Tunable Macrocyclic Receptors for Selective Recognition of Metal Ions
摘要:
Despite the tremendous progress that has been made in macrocyclic chemistry since the discovery of corands, cryptands, and spherands more than four decades ago, macrocyclic systems possessing a high level of controllability in structural configuration concurrent with a systematic tunability in function are still very rare. Employing an inner design strategy to orient Hbonding forces toward a macrocyclic cavity interior while convergently aligning exchangeable ionbinding building blocks that dictate a near-identical backbone curvature, we demonstrate here a novel pentagonal framework that not only enables its variable interior cavity to be maintained at near-planarity but also allows its ion-binding potential to be highly tunable. The H-bonded macrocyclic pentamers thus produced have allowed a systematic and combinatorial evolution of ion-selective pentamers for preferential recognition of Cs+, K+, or Ag+ ions.
Persistently Folded Circular Aromatic Amide Pentamers Containing Modularly Tunable Cation-Binding Cavities with High Ion Selectivity
摘要:
In this work, we illustrated a novel design strategy that allows systematically tunable interior properties (effective cavity size, steric crowdedness, and hydrophobicity) contained within a novel class of shape-persistent aromatic pentamers to take place on a scale below 3 angstrom. Such finely tunable structural features are complimented by experimentally observable functional variations in ion-binding potential. Results of the selective, differential binding affinities of three circular pentamers for Li(+), Na(+), K(+), Rb(+), and Cs(+), substantiated by metal-containing crystal structures and computational modeling, are detailed.
Substituted aminosalicyclic acid amides with fungicidal effect and intermediate products for production thereof
申请人:Bayer Aktiengesellschaft
公开号:US06194418B1
公开(公告)日:2001-02-27
The invention relates to novel substituted aminosalicylamides, to a plurality of processes for their preparation and to their use as fungicides, and also to novel intermediates and to a plurality of processes for their preparation.
Substituted aminosalicylic acid amides with fungicidal effect and intermediate products for production thereof
申请人:——
公开号:US20020006958A1
公开(公告)日:2002-01-17
The invention relates to novel substituted aminosalicylamides, to a plurality of processes for their preparation and to their use as fungicides, and also to novel intermediates and to a plurality of processes for their preparation.
Die Erfindung betrifft neue substituierte Aminosalicylsäureamide, mehrere Verfahren zu ihrer Herstellung und ihre Verwendung als Fungizide, sowie neue Zwischenprodukte und mehrere Verfahren zu deren Herstellung.
本发明涉及新的取代氨基水杨酸酰胺、其制备和用作杀菌剂的几种工艺,以及新的中间体和其制备的几种工艺。
Zwischenprodukte zur Herstellung von substituierten Aminosalicylsäureamiden mit funizider Wirkung
申请人:Bayer CropScience AG
公开号:EP2292608A1
公开(公告)日:2011-03-09
Die Erfindung betrifft neue substituierte Aminosalicylsäureamide, mehrere Verfahren zu ihrer Herstellung und ihre Verwendung als Fungizide, sowie neue Zwischenprodukte und mehrere Verfahren zu deren Herstellung.
本发明涉及新的取代氨基水杨酸酰胺、其制备和用作杀菌剂的几种工艺,以及新的中间体和其制备的几种工艺。
Persistently Folded Circular Aromatic Amide Pentamers Containing Modularly Tunable Cation-Binding Cavities with High Ion Selectivity
In this work, we illustrated a novel design strategy that allows systematically tunable interior properties (effective cavity size, steric crowdedness, and hydrophobicity) contained within a novel class of shape-persistent aromatic pentamers to take place on a scale below 3 angstrom. Such finely tunable structural features are complimented by experimentally observable functional variations in ion-binding potential. Results of the selective, differential binding affinities of three circular pentamers for Li(+), Na(+), K(+), Rb(+), and Cs(+), substantiated by metal-containing crystal structures and computational modeling, are detailed.