Examples of 'carbene' in a sentence
Meaning of "carbene"
Carbene is a highly reactive species containing a divalent carbon atom with only six valence electrons
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- Any short-lived, reactive species R₂C:, especially the parent compound CH₂: (also called methylene).
How to use "carbene" in a sentence
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carbene
Preferred carbene ligands mentioned are imidazole ligands.
Diazomethane is also frequently used as a carbene source.
The carbene then converts primary amines to isocyanides.
Insertions are another common type of carbene reactions.
This carbene is no longer considered stable.
It leads to the formation of a higly reactive carbene.
A convenient carbene source is sodium trichloroacetate.
The slow step in most instances is generation of carbene.
A carbene dye is a reactive dye based on carbene chemistry.
Reacting the imidazolium carbene with an acid or alcohol.
The carbene ligand may be part of a cyclic group.
They are considered to be heavier analogues of carbene.
To generate an alkylidene carbene a ketone can be exposed to trimethylsilyl diazomethane.
Methylene is the simplest carbene.
The carbene basically interposes itself into an existing bond.
See also
Methods for synthesizing these carbene compounds are also disclosed.
It is the simplest unsaturated carbene.
Transition metal carbene complexes catalyze the olefin metathesis reaction.
He was also an early leader in the field of carbene chemistry.
The electronic nature of the carbene intermediate is not entirely understood.
Variations in the reaction arise from methods of carbene preparation.
A carbene that the scientific world had only just discovered.
This difference can be used to probe the nature of a carbene.
C is a carbene carbon atom.
It reacts with conjugated base and produce alkylated carbene complexes.
These carbene reagents add to alkenes to give substituted cyclopropanes and cyclopropenes.
The reaction takes place in the presence of a metal carbene catalyst.
A transition metal carbene complex is an organometallic compound featuring a divalent organic ligand.
Moreover the substituent itself may comprise a further carbene structure.
Carbene complexes for almost all transition metals have been reported.
This reaction generally causes them to become transition metal carbene complexes.
The carbon of the carbene is a singlet and is less stable than a triplet.
The divalent organic ligand coordinated to the metal center is called a carbene.
These palladium carbene complexes can be used singly or in combination of two or more.
In chemistry a carbenoid is a reactive intermediate that shares reaction characteristics with a carbene.
Triphenylphosphine then attacks the nascent carbene to form the reactive ylide.
Carbene chemistry almost immediately became the subject of extensive physical organic research.
It is analogues of carbene.
Singlet carbene has bent structure and is less stable than triplet carbene.
In a special embodiment of the invention the metal compound is a metal carbene complex.
The carbene ligand of the compounds of the invention will now be detailed hereinafter.
Here avoiding the double negative charge in one orbital leads to a triplet carbene.
A carbene is a neutral molecule containing a divalent carbon with six electrons in its valence shell.
Grubbs catalysts are a series of transition metal carbene complexes used as catalysts for olefin metathesis.
Carbene and alcohol complex which releases the carbene in situ when thermally treated.
The temperature dependence of excited carbene lifetimes have been examined for a few representative examples.
This carbene is generated in situ from the reaction of Triphenylphosphine and carbon tetrabromide.
The results obtained reveal that the carbene acts as a catalyst for the reaction of polymerisation.
The Wanzlick equilibrium is a chemical equilibrium between a relatively stable carbene compound and its dimer.
These carbene ligands were the object of a survey in Angew.
