A1/A2-Diamino-Substituted Pillar[5]arene-Based Acid–Base-Responsive Host–Guest System

A1/A2-Diamino-Substituted Pillar[5]arene-Based Acid–Base-Responsive Host–Guest System

An acid–base-responsive supramolecular host–guest system based on a planarly chiral A1/A2-diamino-substituted pillar[5]­arene (1)/imidazolium ion recognition motif was created. The pillar[4]­arene[1]­diaminobenzene 1 can bring an electron-deficient imidazolium cation into its cylindrically shaped ca...

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Veröffentlicht in:Journal of organic chemistry 2016-05, Vol.81 (9), p.3877-3881
Hauptverfasser: Hu, Wei-Bo, Hu, Wen-Jing, Zhao, Xiao-Li, Liu, Yahu A, Li, Jiu-Sheng, Jiang, Biao, Wen, Ke
Format: Artikel
Sprache:eng
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Zusammenfassung:An acid–base-responsive supramolecular host–guest system based on a planarly chiral A1/A2-diamino-substituted pillar[5]­arene (1)/imidazolium ion recognition motif was created. The pillar[4]­arene[1]­diaminobenzene 1 can bring an electron-deficient imidazolium cation into its cylindrically shaped cavity under neutral or basic conditions and release it under acidic conditions.
ISSN:0022-3263
1520-6904
DOI:10.1021/acs.joc.6b00617