title: Selective dimerization of 1,6-diynes catalyzed by ionic liquid-supported nickel complexes in an ionic liquid/toluene biphasic system.
abstract: A NiCl(2)-6H(2)O/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 NiBr(2)-3H(2)O/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.
authors.affiliation: Department of Material & Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan.
authors.forename: Avijit
authors.initials: A
authors.lastname: Goswami
authors.forename: Taichi
authors.initials: T
authors.lastname: Ito
authors.forename: Naoko
authors.initials: N
authors.lastname: Saino
authors.forename: Kouki
authors.initials: K
authors.lastname: Kase
authors.forename: Chikashi
authors.initials: C
authors.lastname: Matsuno
authors.forename: Sentaro
authors.initials: S
authors.lastname: Okamoto