Back Cover: Synthesis of Soluble, Alkyne‐Substituted Trideca‐ and Hexadeca‐Starphenes (Chem. Eur. J. 40/2014). Issue 40 (26th September 2014)

• Record Type: Journal Article
• Authors: Rüdiger, Elias C.; Porz, Michael; Schaffroth, Manuel; Rominger, Frank; Bunz, Uwe H. F.
• Is Part Of: Chemistry. Volume 20:Issue 40(2014)
• Page Start: 13036
• Page End: 13036
• Publication Date: 2014-09-26
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201490169
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Starphenes were obtained</bold> by the Ni‐catalyzed trimerization (Yamamoto reaction) of suitable <italic>ortho</italic>‐dibromotetracene and <italic>ortho</italic>‐dibromopentacenes. The starphenes are highly soluble due to the attached triisopropylsilyl (TIPS)‐ethynyl groups. These bulky groups also distort the molecular structure of the starphenes. The red starphene in the foreground is tetracene based, whereas the orange star is dibromopentacene based, representing three hexacenes, sharing one central ring. The starphenes are surprisingly stable and showed weak absorption bands in the visible spectra. For more information, see the Communication by U. H. F. Bunz et al. on page ff. 12725.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh1f904mq4" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>