Examples of 'hydrogenations' in a sentence
Meaning of "hydrogenations"
Hydrogenation is a chemical reaction in which hydrogen is added to an unsaturated compound, typically in the presence of a catalyst, to form a saturated compound
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- plural of hydrogenation
How to use "hydrogenations" in a sentence
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hydrogenations
Hydrogenations were carried out in a stainless steel autoclave.
The cocatalysts are particularly useful for hydrogenations.
The hydrogenations described herein are exothermic reactions.
Organometallic complexes allow these hydrogenations to be effected asymmetrically.
Hydrogenations are preferably carried out under superatmospheric pressure.
These processes are called transfer hydrogenations.
Selective hydrogenations of anhydrides are not widely known.
Palladium on carbon is used for catalytic hydrogenations in organic synthesis.
Hydrogenations can be carried out at atmospheric pressure or at superatmospheric pressure.
Suitable catalysts are all catalysts conventional for catalytic hydrogenations.
Hydrogenations are preferably carried out at atmospheric pressure or superatmospheric pressure.
The products of the two separate asymmetric hydrogenations have been combined.
All hydrogenations are carried out under normal hydrogen pressure.
It is surprising that an improved selectivity of the selective catalytic hydrogenations is obtained.
Hydrogenations were carried out in a stainless steel autoclave otherwise indicated.
See also
These complexes are useful as catalysts in asymmetric reactions such as asymmetric hydrogenations.
Such catalytic hydrogenations are also supposed to be possible while retaining halogen.
The most commonly employed catalyst in such hydrogenations is copper chromite.
Hydrogenations were executed at atmospheric pressure of hydrogen gas maintained by inflated balloon.
One of the most common catalysts employed in such hydrogenations is copper chromite.
Hydrogenations in protic alcoholic solvents resulted in slower reactions and reduced selectivity.
Representative non limiting examples of ketone hydrogenations are reported in the scheme below.
The asymmetric hydrogenations can be carried out either batchwise or in a continuous manner.
Neutralization of hydrogenations.
Hydrogenations were carried out in open glass tubes placed inside a stainless steel autoclave.
Representative non limiting examples of alkene hydrogenations are reported in the scheme below.
Selective catalytic hydrogenations of alkynols to alkenols are important processes in the fine chemicals industry.
The crude product was characterized spectroscopically and used in hydrogenations without purification.
Catalytic hydrogenations employ catalysts that increase the rate of the reaction between the organic compounds.
Preferably the metal complexes are used in their isolated forms for the hydrogenations.
Catalytic hydrogenations are performed in a Parr hydrogenation apparatus.
No significant mass losses of the catalyst took place during the six hydrogenations.
Hydrogenations are run on a Parr apparatus.
The homogeneous residue can be isolated or used further directly as a homogeneous catalyst for hydrogenations.
Examples of selective hydrogenations are described in the Background Art section of the present specification.
And spoke that have not Inclinations to hydrogenations.
Background Catalytic hydrogenations are employed to add hydrogen over double and triple bonds.
The co-catalysts are especially suitable for hydrogenations.
BACKGROUND ART Selective hydrogenations of unsaturated hydrocarbon compounds are of high industrial significance.
Furthermore, heterogeneous catalysts are typically used in industrial hydrogenations.
Hydrogenations are reactions, wherein compounds are reduced by addition of elementary hydrogen.
The filtrates from two hydrogenations could be combined for work-up.
In certain cases, fixed bed reactors are used for large scale hydrogenations.
These hydrogenations are performed with selective catalysts, for example palladium on alumina.
Figure 10 shows the final product composition from various hydrogenations of limonene in a batch reactor.
Catalytic hydrogenations are also commonly used in the chemical industries, such as in petrochemical processes.
These immobilized catalysts therefore allow, in particular, industrial-scale hydrogenations to be carried out economically.
Transfer hydrogenations can proceed with high enantioselectivities when the starting material is prochiral,.
Iron carbonyls are used as a protective group for dienes in hydrogenations and Diels-Alder reactions.
Hydrogenations were performed using a Thales H-Cube.
