Examples of 'transition metal catalysts' in a sentence
Meaning of "transition metal catalysts"
transition metal catalysts - These are substances used in chemical reactions to facilitate the conversion of reactants into products by providing an alternative reaction pathway with lower activation energy. They are commonly employed in organic synthesis and industrial processes to enhance reaction rates and selectivity
How to use "transition metal catalysts" in a sentence
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transition metal catalysts
Transition metal catalysts and formation thereof.
Catalysts used include transition metal catalysts.
Preferred transition metal catalysts are chiral and stereorigid.
Such catalysts generally are transition metal catalysts.
Supported transition metal catalysts can also be used.
These new catalysts can be referred to as bulky ligand transition metal catalysts.
Reactions with transition metal catalysts.
Transition metal catalysts are typically small metal particles or crystallites.
Typical catalysts are transition metal catalysts.
Suitable transition metal catalysts preferably comprise rhodium or ruthenium.
The use of one or more ligands to solubilize transition metal catalysts is desirable.
Transition metal catalysts and ligands may be used in the reaction.
Suitable initiators include transition metal catalysts and free radical initiators.
Various silane compounds have been utilized for the preparation of transition metal catalysts.
Aluminoxane may be used with transition metal catalysts for the polymerization of olefins.
See also
Transition metal catalysts are also well known for use in the production of polyurethane adhesives.
This reaction may be catalyzed by the addition of transition metal catalysts or their salts.
The transition metal catalysts are employed in the form of salts and other compositions.
Aryl halides or triflates can be coupled with diboronyl reagents using transition metal catalysts.
TPBD is normally prepared utilizing transition metal catalysts or rare earth catalysts.
Examples of such catalysts include the Group VIII of the periodic system transition metal catalysts.
Transition metal catalysts can be used in combination, as necessary.
Conventional-type transition metal catalysts can be used.
Transition metal catalysts are preferred, preferably in the form of a transition metal salt.
In one or more embodiments, conventional-type transition metal catalysts can be used.
As transition metal catalysts there may be mentioned, but not limited by, palladium and platinum.
It is also advantageous to include bleach catalysts and, in particular, transition metal catalysts.
Transition metal catalysts can be roughly divided into two classes, homogeneous and heterogeneous.
All such reactions liberate water, which is a poison for transition metal catalysts.
Nevertheless, transition metal catalysts remain unrivalled in some key reactions, such as asymmetric catalytic hydrogenation.
The following are specific preferred but non-limiting transition metal catalysts that may be used.
Suitable transition metal catalysts include palladium on carbon, palladium hydroxide on carbon, and platinum oxide.
Aromatic C-H functionalization can also be done using transition metal catalysts.
For all transition metal catalysts specified herein, Rl is significantly larger than R2.
As asymmetric reductions, the transition metal catalysts are used R.
Transition metal catalysts can be used, or used in combination, as necessary.
EXAMPLE 4 This Example demonstrates the effectiveness of a variety of transition metal catalysts.
Examples of conventional transition metal catalysts are discussed in U.S. Patent Nos.
Other catalysts ( 2 ) include monocyclopentadienyl constrained geometry type catalysts and bidentate a-diimine late transition metal catalysts.
Preferably, the transition metal catalysts are non-metallocene.
Preferably, but not necessarily, the first ( A2 ) and second ( B ) transition metal catalysts are the same.
Typical transition metal catalysts are salts of palladium, nickel, cobalt, or iron.
Trans 1,4-polybutadiene is normally prepared utilizing transition metal catalysts or rare earth catalysts.
Some transition metal catalysts are not, however, affected by such fixing.
Trans-1,4-polybutadiene is normally prepared utilizing transition metal catalysts or rare earth catalysts.
Accordingly, one specific class of transition metal catalysts is the copper halides, for example, Cu ( I ) Cl.
Bleaching composition comprising terpenes as perfumes and transition metal catalysts are known from WO 9839406.
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