Process for preparation of ruthenium-based carbene catalysts with chelating alkylidene ligands

The invention relates to a method for preparation of ruthenium-based carbene catalysts with chelating alkylidene ligands (so-called 'Hoveyda-type catalysts') in a cross metathesis reaction by reacting a ruthenium-alkylidene complex with an olefin derivate in the presence of a polymer-suppo...

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Bibliographic Details
Main Authors MONSAERT STIJN FRANS, VERPOORT FRANCIS WALTER CORNELIUS
Format Patent
LanguageChinese
English
Published 19.12.2012
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The invention relates to a method for preparation of ruthenium-based carbene catalysts with chelating alkylidene ligands (so-called 'Hoveyda-type catalysts') in a cross metathesis reaction by reacting a ruthenium-alkylidene complex with an olefin derivate in the presence of a polymer-supported cation-exchange resin (PSR) acting as a ligand (i.e. phosphine or amine) scavenger. Preferably, penta-coordinated ruthenium benzylidene or indenylidene carbene complexes are employed. The polymer-supported cation-exchange resin (PSR) may be an acidic resin (comprising sulfonic acid or carboxylic groups) or a resin containing carboxylic acid chloride (-COC1) groups or sulfonyl chloride (-SO2Cl) groups. The process is versatile and environmentally friendly; high yields are obtained.
Bibliography:Application Number: CN2011807338