A Robust Porous Quinoline Cage: Transformation of a (4+6) Salicylimine Cage by Povarov Cyclization

Abstract: Porous shape‐persistent organic cages have become the object of interest in recent years because they are soluble and thus processable from solution. A variety of cages can be achieved by applying dynamic covalent chemistry (DCC), but they are less chemically stable. Here the transformation of a salicylimine cage into a quinoline cage by a twelve‐fold Povarov reaction as the key step is described. Besides the chemical stability of the cage over a broad pH regime, it shows a unique absorption and emission depending on acid concentration. Furthermore, thin films for the vapor detection of acids were investigated, showing color switches from pale‐yellow to red, and characteristic emission profiles.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: A Robust Porous Quinoline Cage: Transformation of a (4+6) Salicylimine Cage by Povarov Cyclization ; volume:59 ; number:44 ; year:2020 ; pages:19675-19679 ; extent:5 ; Angewandte Chemie / International edition. International edition ; 59, Heft 44 (2020), 19675-19679 (gesamt 5)

Contributors, Places and Time

• Creator: Alexandre, Pierre‐Emmanuel ; Zhang, Wen‐Shan ; Rominger, Frank ; Elbert, Sven M. ; Schröder, Rasmus R. ; Mastalerz, Michael

Further information

• DOI: 10.1002/anie.202007048
• URN: urn:nbn:de:101:1-2022061111580307000332
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:25 AM CEST