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Reductive catalytic

Catalytic dewaxing Catalytic hydrogenation Catalytic properties Catalytic pyrolysis Catalytic reduction Catalytic reforming... [Pg.174]

Catalytic Reduction. Catalytic reduction usually takes place in solution, emulsion, or suspension in autoclaves or pressurized vessels after the catalyst is added, the vessel is pressurized with hydrogen (32,33). Water and methanol are the preferred solvents. In water the addition of alkaU hydroxide (34), alkah carbonate (35), or acid (36) has been recommended. [Pg.311]

One synthesis uses cyan idc as t ho act ivat ing group and carries out both reductions catalytically. [Pg.426]

In these polymer-metal complexes of the Werner type, however, organometallic compounds are formed as reaction intermediates and/or activated complexes. As a result, the properties of polymer-metal catalysts in reductive reactions are different from those of polymer-metal catalysts in oxidative reactions. In the former, the catalytic reactions are very sensitive to moisture and air, and the complex catalysts often decompose in the presence of water and oxygen. Thus, reductive catalytic reactions are carried out under artificial conditions such as organic solvent, high pressure, and high temperature. Oxidative catalytic reactions, on the other hand, proceed under mild conditions aqueous solution, oxygen atmosphere, and room temperature. Therefore, it is to be expected that the catalytic effects of a polymer ligand will differ from the latter to the former. [Pg.64]

SABATIER-SENDERENS REDUCTION. Catalytic hydrogenation of organic compounds in the vapor phase by passage over hot, finely divided nickel (the oldest of all hydrogenation methods). [Pg.1455]

Castellan, A., Nourmamode, A., Fomier de Violet, P., Colombo, N. and Jeager, C., "Photoyellowing of Milled Wood Lignin and Peroxide-Bleached Milled Wood Lignin in Solid 2-hydroxypropyl cellulose after Borohydride Reduction Catalytic Hydrogenation in Solution An UV-Visible Absorption Spectroscopic Study", J. Wood Chem. Technol., 1992,12(1) 1. [Pg.202]

A second basic interaction pathway between transition metal complexes and organic substrates is SET (Path B). The overall processes can involve one individual or several sequential SET steps. For the latter, timing and direction of SET steps determine the reaction outcome significantly. The catalyzed reaction can proceed either as redox-neutral processes, in which oxidative and reductive SET steps are involved in the catalytic cycle, or as overall oxidative or reductive catalytic reactions, where two oxidative or reductive SET steps occur consecutively in the catalytic cycle. The third pathway (Path C) consists of a direct atom or group abstraction by the metal complex, which is possible for a weak R-X bond. [Pg.123]

Since the introduction of the titanocene chloride dimer 67a to radical chemistry, much attention has been paid to render these reactions catalytic. This field was reviewed especially thoroughly for epoxides as substrates [123, 124, 142-145] so only catalyzed reactions using non-epoxide precursors and a few very recent examples of titanium-catalyzed epoxide-based cyclization reactions, which illustrate the principle, will be discussed here. A very useful feature of these reactions is that their rate constants were determined very recently [146], The reductive catalytic radical generation using 67a is not limited to epoxides. Oxetanes can also act as suitable precursors as demonstrated by pinacol couplings and reductive dimerizations [147]. Moreover, 5 mol% of 67a can serve as a catalyst for the 1,4-reduction of a, p-un saturated carbonyl compounds to ketones using zinc in the presence of triethylamine hydrochloride to regenerate the catalyst [148]. [Pg.143]

This encompasses all reduction methods other than hydrogenation and includes hydride equivalents and one-electron reductions. Catalytic hydrogen transfer is included under hydrogenation (see Section 3.6.3). [Pg.579]

Reduction. Catalytic hydrogenation of 3) -acetoxy-5-enes may give as much as 10% hydrogenolysis of the acetoxy-group. Zinc-copper couple in refluxing... [Pg.249]

Rosenmund reduction. Catalytic reduction of acid chlorides to aldehydes. To prevent further hydrogenation, a poison is added to the catalyst. [Pg.1096]

Dimethylhydrazine is currently prepared commercially by a modified Raschig process reacting dimcthylamine with the chloramine produced from ammonia and sodium hypochlorite. Formerly, it was prepared by the reduction of dimethylnitrosamine or by the reductive catalytic alkylation of carboxylic acid hydrazides with formaldehyde and hydrogen, followed by basic hydrolysis (Budavari et al. 1989 EPA 1984a, 1992b lARC 1974 Schmidt 1988). 1,2-Dimethylhydrazine may be prepared from dibenzoylhydrazine or by electrosynthesis from nitromethane (Budavari et al. 1989). [Pg.116]

Active transport (see Fig. 1.2F) is driven by oxidation-reduction, catalytic reactions, biochemical conversions on the membrane interfaces. As a rule, it is highly selective no other species are transported at this type of transport. [Pg.8]


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1.2.4- Oxadiazole catalytic reduction

1.2.4- Oxadiazoles catalytic reduction

6.7- Dihydro-2//-pyrimido isoquinolines, catalytic reduction

Absorption Plus Selective Catalytic Reduction

Aldehydes catalytic reduction

Allyl halides catalytic reduction

Amino acids, dehydroenantioselective catalytic hydrogenation reduction

Ammonia selective catalytic reduction

Apparatus for Catalytic Reduction

Atmospheric pollution catalytic reduction

Azides, catalytic reduction

Benzaldehyde reduction catalytic

Bimetallic catalytic reduction

CATALYTIC NITRO REDUCTION

CATALYTIC NITRO REDUCTION PROCESSES

Carbon dioxide catalytic reduction

Carbon-halogen bonds catalytic reduction

Carbonyl catalytic reductive coupling

Catalysts and Reactors for Selective Catalytic Reduction of NO

Catalytic CO2 reduction

Catalytic Converters for Reduction of Car Engine Emissions

Catalytic Four-Electron Reduction of

Catalytic NO reduction

Catalytic Reduction of Dinitrogen

Catalytic Reduction of Dinitrogen to Ammonia by Molybdenum

Catalytic Reduction of Nitric Oxide

Catalytic Reduction of Oxygen

Catalytic Two-Electron Reduction of O2 via MCET and PCET

Catalytic asymmetric reduction

Catalytic cycle reduction

Catalytic cycle, reduction nitrogenase

Catalytic hydrogenation Rosenmund reduction

Catalytic hydrogenation asymmetric reduction

Catalytic hydrogenation conjugate reduction

Catalytic hydrogenation reductive alkylation

Catalytic oxygen reduction

Catalytic processes reductive elimination

Catalytic reaction, olefin reductions

Catalytic reactions involving CO and nitrobenzene reduction

Catalytic reactions involving asymmetric reduction

Catalytic reactions reduction

Catalytic reduction

Catalytic reduction

Catalytic reduction apparatus

Catalytic reduction of NOX

Catalytic reduction of carbon monoxide

Catalytic reduction of nitrogen oxides

Catalytic reduction reactions mechanism

Catalytic reduction with propene over

Catalytic reduction, preparation

Catalytic reduction, preparation tritiated

Catalytic reduction, with Adams’ platinum oxide catalyst

Catalytic reductions, nitric acid with

Catalytic reductions, nitric acid with ammonia

Catalytic reductive alkylation

Catalytic reductive carbonylation

Catalytic reductive carbonylation nitrobenzenes

Catalytic reductive coupling

Catalytic reforming reduction

Catalytic system, toward reduction

Cobalamins catalytic reduction

Cyclohexanone catalytic reduction

Diagrams Catalytic reduction

Diastereoselective Olefin Reductions by Catalytic Hydrogenation

Dinitrogen catalytic reduction

Dinitrogen reduction catalytic systems

Electron Transfer in Catalytic Dinitrogen Reduction

Enantioselectivity catalytic reduction of ketone

Exhaust catalytic reduction

Fast selective catalytic reduction

Fast selective catalytic reduction mechanism

Furan catalytic reduction

Halides catalytic reduction

Hydrazines, catalytic reduction

Hydrocarbon-assisted selective catalytic reduction

Hydrocarbon-selective catalytic reduction

Hydrogen peroxide catalytic oxygen reduction

Hydrogen-Selective Catalytic Reduction (H2-SCR)

Hydrogen-selective catalytic reduction

Imidazole catalytic reduction

Imine catalytic asymmetric reduction

Indole catalytic reduction

Isoindole catalytic reduction

Ketones catalytic reduction

Meerwein-Ponndorf-Verley reduction catalytic

NO selective catalytic reduction

Nitric Acid Selective Catalytic Reduction

Nitriles, catalytic hydrogenation conjugate reduction

Nitriles, catalytic hydrogenation reductive cleavage

Nitrogen catalytic reduction

Nitrogen oxides, catalytic reduction

Non-Selective Catalytic Reduction

Other Catalytic Reductions

Oxidation-reduction catalytic systems

Oximes catalytic reduction

Oxygen reduction reaction catalysts catalytic effect

Proton-coupled electron-transfer catalytic oxygen reduction

Pyrazole catalytic reduction

Pyrrole catalytic reduction

Radical Reactions, Catalytic Hydrogenation, Reductions

Reduction aluminium hydride catalytic

Reduction by catalytic hydrogenation

Reduction catalytic hydrogen transfer

Reduction catalytic hydrogenation

Reduction mechanism, catalytic hydrogenolysis

Reduction reactions catalytic hydrogenation

Reduction system, catalytic

Reduction, selective catalytic

Reductions catalytic transfer hydrogenation

Selective Catalytic Reduction The SCR Process

Selective Catalytic Reduction acid plants

Selective Catalytic Reduction approaches

Selective Catalytic Reduction plasma

Selective Catalytic Reduction process

Selective catalytic reduction (SCR

Selective catalytic reduction ammonia oxidation

Selective catalytic reduction catalyst

Selective catalytic reduction catalyst modules

Selective catalytic reduction catalyst sizing

Selective catalytic reduction challenges

Selective catalytic reduction chemical

Selective catalytic reduction chemistry

Selective catalytic reduction component

Selective catalytic reduction deNOx

Selective catalytic reduction deactivation

Selective catalytic reduction deactivation causes

Selective catalytic reduction description

Selective catalytic reduction design

Selective catalytic reduction design considerations

Selective catalytic reduction direct synthesis

Selective catalytic reduction exchange

Selective catalytic reduction fast reaction

Selective catalytic reduction filters

Selective catalytic reduction filtration

Selective catalytic reduction hydrothermal

Selective catalytic reduction of NOX

Selective catalytic reduction operating conditions

Selective catalytic reduction oxidation

Selective catalytic reduction pore size

Selective catalytic reduction ranges

Selective catalytic reduction reactions

Selective catalytic reduction standard reaction

Selective catalytic reduction synthesis methods

Selective catalytic reduction with ammonia

Stereochemistry conjugate reduction, catalytic hydrogenation

Substrates conjugate reduction, catalytic hydrogenation

Superoxide complexes catalytic oxygen reduction

The catalytic hydrogenation and chemical reduction of alkenes

Three-step catalytic reduction

Unsaturated ketone catalytic reduction

Urea and NH3 Selective Catalytic Reduction

Water catalysts catalytic oxygen reduction

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