hydrogenate

(redirected from hydrogenations)
Also found in: Dictionary, Thesaurus.
Related to hydrogenations: catalytic hydrogenation

hydrogenate

 [hi´dro-jen-āt″]
to cause to combine with hydrogen; to reduce with hydrogen.

hydrogenate

to cause to combine with hydrogen; to reduce with hydrogen.
References in periodicals archive ?
Thermoplastic elastomers based on styrene-diene block copolymers, such as SBS triblock copolymers, exhibit an interesting combination of mechanical properties and processability without the need for a vulcanization process [2], These types of polymers exhibit a two-phase microstructure of glassy polystyrene microdomains dispersed in a rubbery polydiene matrix due to the thermodynamic incompatibility of such substances [50], We anticipate that hydrogenation of the polybutadiene isomers may have an effect on the miscibility of the hard blocks (polystyrene) and the soft blocks (poly(butadiene-ethylene-butylene)), which would directly affect the mechanical properties of the resulting hydrogenated polymer.
The star-like molecular architecture of these polymers is produced by the homogenous catalytic hydrogenation of a parent four arm star copolymer of poly(styrene-b-butadiene-6-styrene) using a catalytic system based on bis([[eta].
The general laboratory setup for the catalytic polymer hydrogenation consisted of a 1 L glass reactor (Chemco) connected to a series of tubing that allowed for precise feeding of known amounts of cyclohexane and hydrogen to the stirred reactor.
The results with limonene in hydrogenation of castor oil were promising, as it presented a high conversion in saturated products (72%) and major selectivity for cetostearic production.
Therefore, it is desirable to apply this hydrogen donor to the hydrogenation of other oils.
In this work, the use of limonene as a solvent hydrogen donor was investigated for the hydrogenation of the sunflower oil.
Enabling Asymmetric Hydrogenation For The Design Of Efficient Synthesis Of Drug Substances
The reaction in Figure 2 is initiated by acid catalyzed loss of water from glycerol to give the highly reactive 3-hydroxy-propionaldehyde intermediate, which then requires a rapid hydrogenation of the carbonyl group to yield the desired 1,3-propanediol.
Depending on the actual (and presently unknown) pathway the reaction will require either a hydrogenation of carbonyl intermediates (second step of the top pathway--analogous to the pathway in Figure 2) or enol ethers (bottom pathway) and in either case a hydrogenolysis of a secondary carbon-oxygen bond (first or second step in the top or bottom pathway, respectively).
In 45 clearly structured chapters, the book includes all hydrogenation reactions catalyzed by soluble transition metal-based catalysts.
His research interests are in the area of asymmetric hydrogenation (MonoPhos), aromatic substitution ("homeopathic" palladium), hydroformylation, metathesis, combinations of enzymes with transition metal catalysis, HTS, combinatorial catalysis and process intensification.
In summary, Noyori's BINAP-Ru(II) complexes show high chiral recognition in the hydrogenation of a variety of functionalized olefins and ketones.