Template‐Controlled Synthesis of Polyimidazolium Salts by Multiple [2+2] Cycloaddition Reactions
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Otros documentos de la autoría: Dobbe, Christian B.; Gutiérrez-Blanco, Ana; Tan, Tristan T. Y.; Hepp, Alexander; Poyatos, Macarena; Peris, Eduardo; Hahn, Franz Ekkehardt
Metadatos
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INVESTIGACIONMetadatos
Título
Template‐Controlled Synthesis of Polyimidazolium Salts by Multiple [2+2] Cycloaddition ReactionsAutoría
Fecha de publicación
2020-09-04Editor
WileyISSN
0947-6539; 1521-3765Cita bibliográfica
C. B. Dobbe, A. Gutiérrez-Blanco, T. T. Y. Tan, A. Hepp, M. Poyatos, E. Peris, F. E. Hahn, Chem. Eur. J. 2020, 26, 11565.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202001515Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The tetrakisimidazolium salt H4‐2(Br)4, featuring a central benzene linker and 1,2,4,5‐(nBu‐imidazolium‐Ph‐CH=CH‐) substituents reacts with Ag2O in the presence of AgBF4 to yield the tetranuclear, oktakis‐NHC assembly ... [+]
The tetrakisimidazolium salt H4‐2(Br)4, featuring a central benzene linker and 1,2,4,5‐(nBu‐imidazolium‐Ph‐CH=CH‐) substituents reacts with Ag2O in the presence of AgBF4 to yield the tetranuclear, oktakis‐NHC assembly [3](BF4)4. Cation [3]4+ features four pairs of olefins from the two tetrakis‐NHC ligands perfectly arranged for a subsequent [2+2] cycloaddition. Irradiation of [3](BF4)4 with a high pressure Hg lamp connects the two tetra‐NHC ligands through four cyclobutane linkers to give compound [4](BF4)4. Removal of the template metals yields the novel oktakisimidazolium salt H8‐5(BF4)8. The tetrakisimidazolium salt H4‐2(BF4)4 and the oktakisimidazolium salt H8‐5(BF4)8 have been used as multivalent anion receptors and their anion binding properties towards six different anions have been compared. [-]
Publicado en
Chemistry–A European Journal, 2020, vol. 25, no 50Proyecto de investigación
DFG. Grant Number: IRTG 2027 and SFB 858Derechos de acceso
info:eu-repo/semantics/openAccess
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