Issue 4, 2009
From the journal:

Chemical Communications

Selective dimerization of 1,6-diynes catalyzed by ionic liquid-supported nickel complexes in an ionic liquid/toluene biphasic system†

Avijit Goswami,a   Taichi Ito,a   Naoko Saino,b   Kouki Kase,a   Chikashi Matsunoa  and  Sentaro Okamoto*a  

* Corresponding authors

a Department of Material & Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Japan
E-mail: okamos10@kanagawa-u.ac.jp
Fax: +81 45 413 9770
Tel: +81 45 481 5661

b New Products Development Division, Kanto Denka Kogyo Co., Ltd., 425 Kanai, Shibukawa, Japan

Abstract

A NiCl2-6H2O/Zn reagent with a 2-aryliminomethylpyridine ligand catalyzed cyclization/polymerization of 1,6-diynes to yield mainly the corresponding poly(1,3-butadienylene) compounds, whereas NiBr2-3H2O/Zn with the use of 3-(2-(2-methoxyethoxy)-ethyl)-1-methyl-1H-imidazol-3-ium bromide as a ligand converted 1,6-diynes to the corresponding annulated 1,3,5,7-cyclooctatetraenes in a biphasic solvent system consisting of toluene and an ionic liquid.

Graphical abstract: Selective dimerization of 1,6-diynes catalyzed by ionic liquid-supported nickel complexes in an ionic liquid/toluene biphasic system

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Article information

DOI
https://doi.org/10.1039/B816850D
Article type
Communication
Submitted
25 Sep 2008
Accepted
20 Oct 2008
First published
18 Nov 2008

Chem. Commun., 2009, 439-441

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Selective dimerization of 1,6-diynes catalyzed by ionic liquid-supported nickel complexes in an ionic liquid/toluene biphasic system

A. Goswami, T. Ito, N. Saino, K. Kase, C. Matsuno and S. Okamoto, Chem. Commun., 2009, 439 DOI: 10.1039/B816850D

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