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Hydrogen olefinic

The last reaction is effectively irreversible under the usual conditions employed to hydrogenate olefins however much information pertinent to this discussion has been obtained by studies of the exchange of saturated hydrocarbons with deuterium (7, 59), a reaction which is initiated through the reversal of reaction (4). [Pg.134]

C=C bond hydrogenation, olefin + H2-> paraffin C=0 bond hydrogenation, acetone + H2 -> isopropanol Complete oxidation of hydrocarbons, oxidation of CO 3H2 + N2 -> 2NH3... [Pg.357]

III) complexes were able to hydrogenate olefins with high turnover frequencies(TOFs) (71). Scheme 15 shows the structure of these gold complexes. The isoelectronic Pd(II) complexes were also synthesized, having a similar activity as its gold analogs. [Pg.245]

Scheme 15. Gold catalysts used to hydrogenate olefins. Scheme 15. Gold catalysts used to hydrogenate olefins.
Several examples of telomerisation of fluoroalkanes with various telogens are reported in Table 1. All the telogens employed in telomerisation of hydrogenated olefins [21-24] are also efficient for fluoroalkenes and the system of initiator also works well with these telogens. Consequently, a large variety of cleavages of X-Y bonds is possible these bonds can be located at the chain end or in the... [Pg.180]

In addition to examples of stoichiometric reactions with alkanes, late transition-metal complexes also seem promising as dehydrogenation catalysts, in view of the many such complexes that catalyze olefin hydrogenation. Olefin hydrogenation is, however, a highly exothermic reaction (AH = ca. -125 kj mol ) and so there is a formidable enthalpic barrier to dehydrogenation. [Pg.617]

Heterogeneous catalysts modified by the addition of chiral substances have been used to hydrogenate olefins asymmetrically, but only a few effective chiral heterogeneous catalyst systems have been found. Palladium deposited on silk fibroin was used to hydrogenate 4-benzylidene-2-methyl-5-oxazolone asymmetrically to give, after hydrolysis, optically active phenylalanine (Fig. lc). The optical purity1 of the product was found to be dependent on the origin of the fibroin and its chemical pretreatment (4-6). [Pg.83]

Adsorbed H2S had an appreciable effect on the rate of desulfurization, and a very marked effect on the rate of butene hydrogenation. Olefins were weakly adsorbed and had only a small effect on desulfurization. [Pg.200]

SELOP A range of processes for selectively hydrogenating olefins. Different catalysts, containing palladium on alumina, are used for different feedstock compositions. Developed by BASF and used in its Antwerp, Belgium, plant since 1994. [Pg.326]

The hydroxycarbenes can easily explain the tormation of aldehydes by reductive elimination from the metal and of alcohols by further hydrogenation. Olefins would be the result of the cleavage of the carbcnoid with the formation... [Pg.291]

Examples include pyrolysis of an alkylbenzene homogeneous aldehyde hydrogenation olefin hydroformylation to alcohol with paraffin by-product formation, aldehyde condensation to heavy ends, and olefin isomerization cyclo-addition reactions and hydrogen-halide reactions. [Pg.191]

Furthermore, hydrogenating properties are detected for intermediate degrees of exchange. Some exchanged sites in the supercage can hydrogenate olefins. [Pg.336]

I. M. Keen With regard to your first question, I would agree with you that the noble metal is the active catalyst component for hydrogenating olefins and aromatics, the zeolite acting as a high-surface-area support for the metal. [Pg.408]

The heterocoupling of hydrosilanes with olefins occurs, formally, via two pathways yielding an unsaturated product as well as either hydrogen or a hydrogenated olefin (DS-1, DS-2) as presented in eqs. (6), and is usually accompanied... [Pg.502]

Gas-liquid- Hydrogenations (olefins, edible oils, several chloro and nitro aromatics), solid Oxidations (p-xylene). Fermentations (alcohol, single cell proteins,... [Pg.287]

We have four goals for this chapter 1) present an overview of the steps commonly employed to study organometallic catalysis, 2) show how the principles underlying molecular mechanics methods are applied to three specific examples (stereoselectivity in asymmetric hydrogenation, olefin polymerization, and host/guest interactions in zeolites), 3) briefly illustrate the practical applications of molecular modeling to catalysts used in industry, and 4) present a limited survey of the literature to illustrate how different workers have applied molecular mechanics to the study of properties of catalysts of importance to organometallic chemists. [Pg.238]


See other pages where Hydrogen olefinic is mentioned: [Pg.269]    [Pg.346]    [Pg.44]    [Pg.52]    [Pg.182]    [Pg.139]    [Pg.113]    [Pg.331]    [Pg.109]    [Pg.179]    [Pg.263]    [Pg.132]    [Pg.106]    [Pg.197]    [Pg.50]    [Pg.333]    [Pg.95]    [Pg.184]    [Pg.239]    [Pg.33]    [Pg.137]    [Pg.155]    [Pg.97]    [Pg.180]    [Pg.259]    [Pg.403]    [Pg.365]    [Pg.8]    [Pg.53]    [Pg.27]    [Pg.859]    [Pg.69]    [Pg.92]   
See also in sourсe #XX -- [ Pg.74 ]

See also in sourсe #XX -- [ Pg.74 ]

See also in sourсe #XX -- [ Pg.74 ]




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A Perspective on the Homogeneous Catalytic Hydrogenation of Olefins

Asymmetric Hydrogenation of Fluorinated Olefins

Asymmetric Hydrogenation of Prochiral Olefins

Asymmetric Hydrogenation of Prochiral Olefins by Rhodium-DuPhos Catalysts

Asymmetric Hydrogenation of Tetrasubstituted Olefins

Asymmetric Hydrogenation of Trisubstituted Olefins with Heteroatoms

Asymmetric Hydrogenation of Unfunctionalized Olefins

Asymmetric catalysis olefin hydrogenation

Asymmetric hydrogenation of olefins

Asymmetric hydrogenation olefin route

Asymmetric hydrogenation unfunctionalized olefins

Brown mechanism, olefin hydrogenation

Carbon monoxide olefin hydrogenation effect

Carbon-hydrogen bonds olefinations

Catalyst hydrogenation effects, olefins

Catalytic enantioselective olefin hydrogenation

Catalytic hydrogenation of olefins

Chiral reactions olefin hydrogenation

Diastereoselective Olefin Reductions by Catalytic Hydrogenation

Disubstituted olefins, hydrogenation

Enantioselective hydrogenations of prochiral olefins

Ethanol, olefin hydrogenation

Halpem mechanism, olefin hydrogenation

Homogeneous catalytic hydrogenation olefinic ketones

Homogeneous hydrogenation of olefins

Homogeneous hydrogenation of olefins and acetylenes

Hydrogen and olefins

Hydrogen atoms olefins

Hydrogen chloride olefins

Hydrogen peroxide olefin epoxidation, propylene oxide

Hydrogen peroxide-titanium silicalite olefin epoxidation

Hydrogen transfer to olefins

Hydrogen transfer, during olefin

Hydrogen transfer, during olefin polymerization

Hydrogen-palladium bonds olefin carbonylation

Hydrogenation monosubstituted olefins

Hydrogenation of Functionalized Olefins with

Hydrogenation of Olefinic Substrates

Hydrogenation of Olefins and Ketones

Hydrogenation of functionalized olefins

Hydrogenation of olefinic double bonds

Hydrogenation of olefins

Hydrogenation of olefins and acetylenes

Hydrogenation of olefins with miscellaneous water-soluble catalysts without phosphine ligands

Hydrogenation of prochiral olefins

Hydrogenation of simple olefins

Hydrogenation of unfunctionalized olefins

Hydrogenation olefinic substrates

Hydrogenation olefins, sulfur poisoning

Hydrogenation olefins. -methane

Hydrogenation prochiral olefins

Hydrogenation styrene type olefins

Hydrogenation trisubstituted olefins

Hydrogenation, catalytic olefin

Insertion, into metal-hydrogen bonds olefins

Iridium-catalyzed hydrogenation olefins

Iron olefin hydrogenation

Olefin (also alkene hydrogenation

Olefin (also hydrogenation

Olefin Hydrogenation Using H2 as a Stoichiometric Reductant

Olefin Hydrogenation with Wilkinsons Catalyst

Olefin complexes hydrogenation (

Olefin hydrogenation

Olefin hydrogenation

Olefin hydrogenation Michael addition

Olefin hydrogenation acrylic acids

Olefin hydrogenation asymmetric, classes

Olefin hydrogenation background

Olefin hydrogenation catalysts

Olefin hydrogenation cationic

Olefin hydrogenation enamides

Olefin hydrogenation enantioselective

Olefin hydrogenation hydrogen activation

Olefin hydrogenation imines

Olefin hydrogenation intermediates

Olefin hydrogenation ketones

Olefin hydrogenation metathesis pathways

Olefin hydrogenation monohydride catalysts

Olefin hydrogenation neutral

Olefin hydrogenation overview

Olefin hydrogenation pathways

Olefin hydrogenation purely organic compounds

Olefin hydrogenation rhodium catalysts

Olefin hydrogenation rhodium-catalyzed

Olefin hydrogenation ruthenium catalysts

Olefin hydrogenation ruthenium-catalyzed

Olefin hydrogenation scheme

Olefin hydrogenation unfunctionalized olefins

Olefin hydrogenation unsaturated alcohols

Olefin hydrogenation using borohydride reagents

Olefin hydrogenation, catalysis

Olefin hydrogenation, catalytic asymmetric

Olefin hydrogenation, supercritical

Olefin hydrogenation, supercritical carbon dioxide

Olefin metathesis hydrogen transfer processes

Olefin structures hydrogenation

Olefin system hydrogenation

Olefin-hydrogen fluoride reaction

Olefinic bonds, catalytic hydrogenations

Olefinic compounds, catalytic hydrogenation

Olefins and Functional Derivatives in the Presence of Carboxylic Acids, Thiols, Amines or Hydrogen Chloride

Olefins asymmetric hydrogenation

Olefins by hydrogenation

Olefins catalyzed hydrogenation

Olefins hydrogenation kinetics

Olefins hydrogenative dimerization

Olefins liquid phase hydrogenation

Olefins transfer hydrogenation

Olefins with hydrogen peroxide

Olefins, epoxidation hydrogenation

Olefins, homogeneous hydrogenation

Olefins, hydrogenation and isomerization

Olefins, hydrogenation catalytic isomerization reactions

Olefins, hydrogenation isomerization reaction

Olefins, hydrogenation mechanisms

Olefins, selective hydrogenation

Organolanthanides and Actinides as Catalysts for Olefin Hydrogenation

Paraffin/olefin ratio, hydrogen

Photocatalytic hydrogenation olefins

Platinum-silica hydrogenation, olefins

Replacement of hydrogen by halogen in olefins

Ruthenium catalysts for olefin hydrogenation

Solvents ethanol, olefin hydrogenation

Stereoselectivity olefin hydrogenation

Subject olefin hydrogenation

The ADDITION OF ACIDS TO OLEFINS THROUGH ELECTROPHILIC HYDROGEN

The hydrogenation of olefins

Transfer hydrogenation olefin substrates

Transition metal complexes, olefin hydrogenation

Wilkinson olefin hydrogenation

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