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- Carbene_dimerization abstract "Carbene dimerization is a type of organic reaction in which two carbene or carbenoid precursors react in a formal dimerization to an alkene. This reaction is often considered an unwanted side-reaction but it is also investigated as a synthetic tool. In this reaction type either the two carbenic intermediates react or a carbenic intermediate reacts with a carbene precursor. An early pioneer was Christoph Grundmann reporting on a carbene dimerisation in 1938. In the domain of persistent carbenes the Wanzlick equilibrium describes an equilibrium between a carbene and its alkene.A reoccurring substrate is a diazo compound and more specifically an alpha-carbonyl diazo compound.For example ethyl diazoacetate is converted to diethyl maleate using the ruthenium catalyst chloro(cyclopentadienyl)bis(triphenylphosphine)ruthenium:Carbene dimerization Baratta 1997Grubbs' catalyst is also effective In this reaction type the active intermediate is a transition metal carbene complex. A diazo cross-coupling reaction has also been reported between ethyl diazoacetate and methyl phenyldiazoacetate using the rhodium catalyst [Rh2(OPiv)4].A direct metal carbene dimerization has been used in the synthesis of novel Polyalkynylethenes".
- Carbene_dimerization thumbnail Carbene_dimerization_Baratta_1997.svg?width=300.
- Carbene_dimerization wikiPageID "30953451".
- Carbene_dimerization wikiPageRevisionID "536886041".
- Carbene_dimerization hasPhotoCollection Carbene_dimerization.
- Carbene_dimerization subject Category:Carbenes.
- Carbene_dimerization subject Category:Organic_reactions.
- Carbene_dimerization type ChemicalProcess113446390.
- Carbene_dimerization type ChemicalReaction113447361.
- Carbene_dimerization type NaturalProcess113518963.
- Carbene_dimerization type OrganicReactions.
- Carbene_dimerization type PhysicalEntity100001930.
- Carbene_dimerization type Process100029677.
- Carbene_dimerization comment "Carbene dimerization is a type of organic reaction in which two carbene or carbenoid precursors react in a formal dimerization to an alkene. This reaction is often considered an unwanted side-reaction but it is also investigated as a synthetic tool. In this reaction type either the two carbenic intermediates react or a carbenic intermediate reacts with a carbene precursor. An early pioneer was Christoph Grundmann reporting on a carbene dimerisation in 1938.".
- Carbene_dimerization label "Carbene dimerization".
- Carbene_dimerization sameAs m.0gg9xfv.
- Carbene_dimerization sameAs Q5037844.
- Carbene_dimerization sameAs Q5037844.
- Carbene_dimerization sameAs Carbene_dimerization.
- Carbene_dimerization wasDerivedFrom Carbene_dimerization?oldid=536886041.
- Carbene_dimerization depiction Carbene_dimerization_Baratta_1997.svg.
- Carbene_dimerization isPrimaryTopicOf Carbene_dimerization.
