Synthesis 2013; 45(8): 1060-1068
DOI: 10.1055/s-0032-1316867
paper
© Georg Thieme Verlag Stuttgart · New York

Efficient Synthesis of 9,10-Bis(phenylethynyl)anthracene Derivatives by Integration of Sonogashira Coupling and Double-Elimination Reactions

Shinji Toyota*
a   Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan   Fax: +81(86)2569457   eMail: stoyo@chem.ous.ac.jp
,
Daiki Mamiya
a   Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan   Fax: +81(86)2569457   eMail: stoyo@chem.ous.ac.jp
,
Rie Yoshida
a   Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan   Fax: +81(86)2569457   eMail: stoyo@chem.ous.ac.jp
,
Ryo Tanaka
a   Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan   Fax: +81(86)2569457   eMail: stoyo@chem.ous.ac.jp
,
Tetsuo Iwanaga
a   Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan   Fax: +81(86)2569457   eMail: stoyo@chem.ous.ac.jp
,
Akihiro Orita
b   Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
,
Junzo Otera
b   Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
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Publikationsverlauf

Received: 13. Januar 2013

Accepted after revision: 18. Februar 2013

Publikationsdatum:
06. März 2013 (online)


Abstract

9,10-Bis(phenylethynyl)anthracene (BPEA) derivatives were synthesized from 10-bromo-9-anthracenecarbaldehyde by stepwise Sonogashira coupling with phenylethynes and the one-shot double-elimination reaction with benzyl phenyl sulfones. Those two reactions could be integrated in a one-pot process to give unsymmetrically substituted BPEA derivatives in good yields by simple operations. This integrated process was applied to the synthesis of an extended BPEA derivative having an extra phenylethynyl group. The photophysical properties of the BPEA derivatives were investigated by UV/Vis and fluorescence spectroscopy.