期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 268, 期 1-2, 页码 127-133出版社
ELSEVIER
DOI: 10.1016/j.molcata.2006.12.016
关键词
alkene metathesis; ruthenium-alkylidene; ionic liquids; imidazolium salts; ionic catalysts
The preparation of two ionic Hoveyda's type catalysts with an ionic chain, containing an imidazolium salt tag link to the ortho oxygen atom (11) and to the meta-position (12) of the styrenylidene ligand is presented. The catalysts are evaluated in ionic liquid medium: the 1-butyl-3-methyl and 1-butyl-2,3-dimethyl imidazolium salts (bmim)X-+(-) (X=PF6-, NTf2- (bistrifluoromethylsulfonimide)) for RCM of N,N-diallyltosylamide and dimethyldiallylmalonate. The catalysts show good activity for the first cycle with moderate recyclability. (c) 2007 Elsevier B.V. All rights reserved.
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