Synthesis of 1,6′-Bi- and 1,6′:3,6′′-Terazulenes from 1-Pyridyl- and 1,3-Di(pyridyl)azulenes by the Ziegler–Hafner Method

• Taku Shoji

  Department of Chemistry, Faculty of Science, Shinshu University

• Atsuyo Yamamoto

  Department of Chemistry, Faculty of Science, Shinshu University

• Erika Shimomura

  Department of Chemistry, Faculty of Science, Shinshu University

• Mitsuhisa Maruyama

  Department of Chemistry, Faculty of Science, Shinshu University

• Shunji Ito

  Graduate School of Science and Technology, Hirosaki University

• Tetsuo Okujima

  Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University

• Kozo Toyota

  Department of Chemistry, Graduate School of Science, Tohoku University

• Noboru Morita

  Department of Chemistry, Graduate School of Science, Tohoku University

抄録

The synthesis of 1,6′-biazulenes 3a and 3b and 1,6′:3,6′′-terazulenes 7a and 7b was established by one-pot reactions via the Zincke-type ring-opening of the corresponding pyridinium salts with diethylamine, followed by the reaction with cyclopentadiene in the presence of sodium methoxide. The intramolecular charge-transfer characters between azulene rings were investigated by UV–vis spectroscopy and theoretical calculations.

収録刊行物

• Chemistry Letters

  Chemistry Letters 42 (6), 638-640, 2013-05-18

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360565169058797824
• NII論文ID: 10031176034
• NII書誌ID: AA00603318
• DOI: 10.1246/cl.130157
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/42/6/638/55635016/cl.130157.pdf
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