PEPPSI for Thirsty Materials Chemists

  • Author: Asian Journal of Organic Chemistry
  • Published Date: 06 December 2013
  • Source / Publisher: Asian Journal of Organic Chemistry/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: PEPPSI for Thirsty Materials Chemists

PEPPSI (Pyridine-Enhanced Precatalyst Preparation Stabilization and Initiation) is not a drink, but the best catalyst to quench materials chemists’ thirsts for new organic functional materials. Since triarylamines, including meso-aminoporphyrins, have found wide applications in organic electronics, such as organic light-emitting devices and organic solar cells, organic chemists have been developing efficient amination reactions. However, aminations of bulky aryl halides are still difficult.

This issue drove Atsuhiro Osuka, Hideki Yorimitsu, and co-workers, Kyoto University, Japan, to develop a new amination technology. The group reported palladium-catalyzed aminations of meso-bromoporphyrins (example pictured) and 9-haloanthracenes with diarylamines. The Pd–PEPPSI complex, which was originally developed by Michael Organ, York University, Toronto, ON, Canada, and is now commercially available and easy to handle, has the best catalytic activity. A wide variety of diarylamines, such as diphenylamine, phenoxazine, phenothiazine, 9,10-dihydroacrydine, and carbazole, are applicable in the reactions.

Article Views: 3843

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH