The Influence of Phosphane Ligands on the Versatility of Ruthenium-Indenylidene Complexes in Metathesis
作者:Julie Broggi、César A. Urbina-Blanco、Hervé Clavier、Anita Leitgeb、Christian Slugovc、Alexandra M. Z. Slawin、Steven P. Nolan
DOI:10.1002/chem.201000659
日期:——
study dealing with the effect of phosphane fine‐tuning in ruthenium–indenylidene catalysts was performed. Challenged to establish how the electronic properties of para‐substituted phosphane ligands translate into catalyst activity, the versatile behaviour of these new ruthenium–indenylidenecomplexes was investigated for a number of metathesis reactions.
Olefin metathesis in non-degassed solvent using a recyclable, polymer supported alkylideneruthenium
作者:James Dowden、Jelena Savović
DOI:10.1039/b007304k
日期:——
Polystyrene-supported ruthenium complex 8 is a robust
pro-catalyst for olefin metathesis that can be used in non-degassed
solvents and recycled without added stabilisers.
<i>p</i>
-Cymene as Solvent for Olefin Metathesis: Matching Efficiency and Sustainability
作者:Artur V. Granato、Alexandra G. Santos、Eduardo N. dos Santos
DOI:10.1002/cssc.201700116
日期:2017.4.22
The underexploited biorenewable p‐cymene is employed as a solvent for the metathesis of various substrates. p‐Cymene is a nontoxic compound that can be obtained in large amounts as a side product of the cellulose and citrus industry. For the cross‐metathesis of estragole with methylacrylate, this solvent prevents the consecutive double‐bond isomerization of the product and affords the best yield of
Isomerization During Olefin Metathesis: An Assessment of Potential Catalyst Culprits
作者:Carolyn S. Higman、Lucie Plais、Deryn E. Fogg
DOI:10.1002/cctc.201300886
日期:2013.12
Two ruthenium hydride complexes commonly proposed as agents of unintended isomerization during olefin metathesis are examined for their activity in isomerization of estragole, a representative allylbenzene. Neither proves kinetically competent to account for the levels of isomerization observed during cross‐metathesis of estragole by the second‐generation Grubbs catalyst. A structure–activity analysis
Spicing up olefin cross metathesis with the renewables estragole and methyl sorbate
作者:Leonildo A. Ferreira、Josiane T. Silva、Raissa G. Alves、Kelley C.B. Oliveira、Eduardo N. dos Santos
DOI:10.1016/j.apcata.2021.118173
日期:2021.6
nature and are present in compounds with relevant biological properties. Herein we investigate the crossmetathesis (CM) of the renewable cross partners estragole and methyl sorbate (MeSo) to produce methyl 6-(4-methoxyphenyl)hexa-2,4-dienoate. By the judicious choice of the ruthenium-based metathesis catalysts, as well as the reaction conditions, it was possible to obtain good conversion and selectivity