Examples of 'chiral catalyst' in a sentence
Meaning of "chiral catalyst"
chiral catalyst: a substance that selectively accelerates a chemical reaction by its molecular structure
How to use "chiral catalyst" in a sentence
Basic
Advanced
chiral catalyst
Of the reaction lacking the chiral catalyst.
The chiral catalyst can be a transition metal complex.
The present invention provides a method of producing an epoxychroman using a chiral catalyst.
Also preferred is that the chiral catalyst is a transition metal catalyst.
The chiral catalyst consists of a transition metal and a chiral ligand.
In this way the specific expenditure of the expensive chiral catalyst is less.
The chiral catalyst is produced from diethyl tartrate and titanium isopropoxide.
Preferably, the chiral catalyst is proline.
The chiral catalyst can be a mixture of a chiral ligand and a transition metal compound.
In an embodiment, the chiral catalyst is a complex of rhodium.
In this embodiment, it is generally preferred that the catalyst is a chiral catalyst.
One chiral catalyst molecule can give rise to many chiral product molecules.
In certain embodiments, the chiral catalyst is a chiral oxazaborolidine.
The chiral catalyst may also be associated to a counterion and / or an olefin.
Additionally, the process continually regenerates the chiral catalyst preventing waste.
See also
The dimeric chiral catalyst of formula III therefore represents a further object of the invention.
Preferably, the prochiral substrate is added to a mixture of borane reagent and chiral catalyst.
The chiral catalyst may also be associated to a counterion and / or an olefm.
In accordance with the third group, the chiral catalyst has the following structure,.
Use of the chiral catalyst according to claim 8 for the realization of stereocontrolled isomerization reactions.
Likewise, the prochiral substrate is preferably added to a mixture of borane-tetrahydrofuran complex and chiral catalyst.
Different chiral catalyst systems have been tested for the enantioselective hydrogenation of compound of formula 4.
In this reaction, naturally occurring chiral proline is the chiral catalyst in an Aldol reaction.
L-alanine is a chiral catalyst and the compound 3 used is racemic.
Preferably I2 is used as additive in combination with an Ir-based chiral catalyst.
Although the chiral catalyst may be recycled, higher substrate-to-catalyst ratios are useful.
The reaction shown in Scheme I may employ a chiral catalyst precursor or pre-catalyst.
The dimeric chiral catalyst of formula III wherein each R6 is ethyl or vinyl ;.
The first asymmetric synthesis via a chiral catalyst was reported in 1996.
Preferably HCN, or ( R ) 3SiCN in the presence of a suitable chiral catalyst is used.
The process according to claim 1, wherein said chiral catalyst in step a is a salt of ( L ) - proline.
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Examples of using Chiral
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An object that is not chiral is said to be achiral
Such chiral diols are important in organic synthesis
Many electrophiles are chiral and optically stable
Examples of using Catalyst
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The substance was a catalyst containing copper acetylide
A catalyst for innovations in sustainable forest management
Personal relationships are a catalyst for institutional trust
