Examples of 'phosphine ligand' in a sentence
Meaning of "phosphine ligand"
phosphine ligand: In chemistry, a phosphine ligand refers to a compound containing a phosphorous atom bound to one or more organic groups. These ligands are commonly used in coordination chemistry to form coordination complexes with various metals
How to use "phosphine ligand" in a sentence
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phosphine ligand
Most preferably the phosphine ligand is triphenylphosphine.
The bidentate ligand is a bidentate phosphine ligand.
The product yields are phosphine ligand dependent and vary greatly.
Dppe is an example of a bidentate phosphine ligand.
Preferably the phosphine ligand is selected from aryl phosphines or cycloalkane phosphines.
The alkoxydimerization catalyst further includes a phosphine ligand.
The phosphine ligand may at least partially decompose during the course of the telomerization reaction.
Most preferred is a chiral phosphine ligand.
Examples of a phosphine ligand include triphenylphosphine and tri-O-tolylphosphine.
A preferred ligand is a phosphine ligand.
The phosphine ligand thus prepared has the structure,.
The copolymerization is promoted by the addition of phosphine ligand to the system.
However, the phosphine ligand can be dissolved in methanol when the solution is warmed.
The metal catalyst can be used together with a phosphine ligand.
In some embodiments, the phosphine ligand is tricyclohexylphosphine.
See also
The process is catalyzed by a cationic rhodium complex of a chiral phosphine ligand.
A method of claim 7 wherein said phosphine ligand is a dialkylphosphinobiphenyl ligand.
The palladium catalyst consists of a palladium source and a phosphine ligand.
The phosphine ligand is selected from aryl phosphines, alkyl phosphines or cycloalkane phosphines.
One embodiment provides for the catalyst comprising at least one phosphine ligand.
The ligands include phosphine ligand exemplified by triphenylphosphine, tributylphophine, diphenylphosphinoethane, diphenylphosphinopropane and diphenylphosphinobutane.
A major part of such preparations is the isolation and purification of the phosphine ligand.
Furthermore, any direct emission of such metal and phosphine ligand will cause severe environment pollutions.
In some embodiments, two R8 are taken together to form a bidentate phosphine ligand.
A preferred bidentate phosphine ligand is a bidentate phosphine of general formula ( I ) wherein.
The chiral phosphine catalysts are prepared by reacting a phosphine ligand with a metal precursor.
The amount of phosphine ligand provides an initial ligand to palladium molar ratio ≧ 1.0.
They remain somewhat less important that the structurally related phosphine ligand family.
The molar ratio of monodentate phosphine ligand to palladium is preferably greater than 5:1.
Preferably, the chiral ligand is a chiral phosphine ligand.
One example of such a bidentate phosphine ligand is bis ( di-tbutyl phosphino ) - o-xylene.
A process in accordance with claim 4 wherein the phosphine ligand is,.
In one embodiment, the phosphine ligand is rac-BINAP, DPPF or DPEphos, and in particular rac-BINAP.
In certain embodiments, the palladium complex is a phosphine ligand bound to palladium.
Preferably the phosphine ligand is P ( t - Bu ) 3 or its salt derivative.
A process according to claim 1, wherein the phosphine ligand is an aryl phosphine.
Preferably, the bidentate ligand is a bidentate phosphine, arsine or stibine ligand, preferably, a phosphine ligand.
Among them, optically active bidentate phosphine ligand is preferably, used.
The method of any of claims 1-8 wherein the catalyst comprises palladium and a monodentate phosphine ligand.
In Example 56, the catalyst system comprises a monodentate phosphine ligand in conjunction with a quinone promoter.
The process according to above ( 1 ), wherein the chiral ligand is a chiral phosphine ligand.
A suitable transition metal for a triphenyl phosphine ligand includes Rh, Ru, Fe, Re, Ni or Pd.
In one embodiment of the invention, the ruthenium complex catalyst comprises a chiral phosphine ligand ( D ).
The process according to claim 1, wherein the phosphine ligand is a compound of formula ( 1 ).
Gold, Silver, Copper: Phosphine ligand compounds containing gold, silver, and copper have anti-cancer properties.
In addition, the palladium catalyst is used along with a phosphine ligand such as triphenylphosphine.
Some of the prepared compounds are obtained as 14e without phosphine ligand.
In a yet further embodiment, the bidentate phosphine ligand is of general formula ( III ) . wherein,.
Key words, palladium chloride, amination, aryl bromide, phosphine ligand.
This may suitably be performed using a base, an amine, a phosphine ligand and a palladium reagent.
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Examples of using Phosphine
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Phosphine is the most commonly used alternative
This may be especially a phosphine such as a triarylphosphine
Phosphine is mainly consumed as an intermediate in organophosphorus chemistry
Examples of using Ligand
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Its main use is as a ligand in metal complexes
Ligand specificity and some physicochemical characteristics
It functions as a ligand for some organometallic compounds
