| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1323211 | Journal of Organometallic Chemistry | 2015 | 7 Pages |
•Synthesis and characterization of alkyl group-tagged ruthenium indenylidene complexes.•Olefin metathesis activities of the alkyl group-tagged ruthenium indenylidene complexes.•Comparison with the commercial available phenyl ruthenium indenylidene complex is made.•The changes in the geometry from the phenyl group by the alkyl groups showed a negligible effect on the catalytic activity.
We report on the synthesis of ruthenium indenylidene catalysts [RuCl2(3-R-1-indenylidene)(PCy3)2 in which R is iso-propyl (7a), tert-butyl (7b) or cyclohexyl (7c)]. The obtained alkyl tagged indenylidene catalysts were analyzed by means of IR, elemental analysis, NMR and single crystal X-Ray diffraction analysis. Furthermore, the catalytic performance of these new complexes was examined in different metathesis reactions: ring-closing metathesis (RCM), ring-closing ene-yne metathesis (RCEYM), ring-opening metathesis polymerization (ROMP) and cross metathesis (CM), exhibiting a comparable activity in comparison with the commercially available catalyst 3a.
Graphical abstractThe synthesis and characterization of three first-generation alkyl group tagged ruthenium indenylidene catalysts are reported, as well as their catalytic performance in olefin metathesis reactions.Figure optionsDownload full-size imageDownload as PowerPoint slide
