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  An oxidative approach enables efficient access to cyclic azobenzenes

Maier, M. S., Hüll, K., Reynders, M., Matsuura, B. S., Leippe, P., Ko, T., et al. (2019). An oxidative approach enables efficient access to cyclic azobenzenes. Journal of the American Chemical Society, 141(43), 17295-17304. doi:10.1021/jacs.9b08794.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0004-CEDE-B Version Permalink: https://hdl.handle.net/21.11116/0000-000A-0EF1-7
Genre: Journal Article

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 Creators:
Maier, Martin S., Author
Hüll, Katharina, Author
Reynders, Martin, Author
Matsuura, Bryan S., Author
Leippe, Philipp1, Author           
Ko, Tongil, Author
Schäffer, Lukas, Author
Trauner, Dirk, Author
Affiliations:
1Chemical Biology, Max Planck Institute for Medical Research, Max Planck Society, ou_2364732              

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 Abstract: Azobenzenes are versatile photoswitches that have found widespread use in a variety of fields, ranging from photo-pharmacology to the material sciences. In addition to regular azobenzenes the cyclic diazocines have recently emerged. Although diazocines have fascinating conformational and photophysical properties, their use has been limited by their synthetic accessibility. Herein, we present a general, high-yielding protocol that relies on the oxidative cyclization of diani-lines. In combination with a modular substrate synthesis, it allows for rapid access to diversely functionalized diazocines on gram scales. Our work systematically explores substituent effects on the photoisomerization and thermal relaxation of diazocines. It will enable their incorporation into a wide variety of functional molecules, unlocking the full potential of these emerging photoswitches. The method can be applied to the synthesis of a new cyclic azobenzene with a nine-membered central ring and distinct properties.

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Language(s): eng - English
 Dates: 2019-08-142019-10-042019-10-042019-10-04
 Publication Status: Issued
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jacs.9b08794
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Title: Journal of the American Chemical Society
  Other : J. Am. Chem. Soc.
  Abbreviation : JACS
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 141 (43) Sequence Number: - Start / End Page: 17295 - 17304 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870