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Synthesis 2002(8): 1013-1016
DOI: 10.1055/s-2002-31947
PAPER
© Georg Thieme Verlag Stuttgart · New York

Coupling Reaction of Azulenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolanes with Haloazulenes

Kei Kurotobi, Hiroshi Tabata, Masato Miyauchi, Toshihiro Murafuji*, Yoshikazu Sugihara*
Department of Chemistry, Faculty of Science, Yamaguchi University, Yamaguchi City 753-8512, Japan
Fax: +81839335768; e-Mail: murafuji@po.cc.yamaguchi-u.ac.jp; sugihara@po.cc.yamaguchi-u.ac.jp;
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Publication History

Received 21 January 2002
Publication Date:
03 June 2002 (online)

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Abstract

In order to study the physicochemical properties of azulene oligomers, the synthesis and a coupling reaction of 2-(2-amino-1,3-bisethoxycarbonyl-6-azulenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1) and 2-(2-azulenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2) were examined.

Key words

arenes - azulene - boron - borylazulene - cross-coupling