Cover Feature: Tetrakis(phenylethynyl)tetracene: A New π‐Extended Rubrene Derivative (Chem. Eur. J. 53/2018)

Tetraarylethynyltetracenes, viewed as novel π‐extended rubrene derivatives, can be synthesized by aryne cycloaddition by using isobenzofuran as a trapping agent. The new π‐extended derivatives, thus obtained, adopt a planar conformation in the tetracene core and show the distorted structure to reduc...

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Bibliographic Details
Published inChemistry : a European journal Vol. 24; no. 53; p. 13986
Main Authors Kitamura, Kei, Asahina, Kenta, Nagai, Yusaku, Sugiyama, Haruki, Uekusa, Hidehiro, Hamura, Toshiyuki
Format Journal Article
LanguageEnglish
Published 20.09.2018
Subjects
crowded tetracene
cycloaddition
dialkynylisobenzofuran
naphthalyne
polycycles
rubrene
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ISSN0947-6539
1521-3765
DOI10.1002/chem.201804588

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Summary:Tetraarylethynyltetracenes, viewed as novel π‐extended rubrene derivatives, can be synthesized by aryne cycloaddition by using isobenzofuran as a trapping agent. The new π‐extended derivatives, thus obtained, adopt a planar conformation in the tetracene core and show the distorted structure to reduce steric repulsion due to the existence of the substituents at the peri‐positions. Unexpected reactivities of epoxytetracene and its aromatized product inherent in these sterically crowded structures are also revealed. More information can be found in the Communication by T. Hamura et al. on page 14034.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201804588