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Raney

Raney nickel A special form of nickel prepared by treating an Al-Ni alloy with NaOH solution. The nickel is left in a spongy mass which is pyrophoric when dry. This form of nickel is a most powerful catalyst, especially for hydrogenations. [Pg.341]

P-Phenylethylamine is conveniently prepared by the hydrogenation under pressure of benzyl cyanide with Raney nickel catalyst (see Section VI,5) in the presence of either a saturated solution of dry ammonia in anhydrous methyl alcohol or of liquid ammonia the latter are added to suppress the formation of the secondary amine, di- P phenylethylamine ... [Pg.560]

Minute amounts of halide have a powerful poisoning effect upon the catalyst it is advisable to distil the benzyl cyanide from Raney nickel. [Pg.566]

In the practical applications of Raney nickel it is more convenient to measure the catalyst than to weigh it. The product, prepared as above, contains about 0-6 g. of the catalyst per millilitre of settled material a level teaspoonful is about 3 g. of nickel. [Pg.871]

An example of the application of the Raney nickel catalyst is given in Section IV,35 (p-phenylethylamine from benzyl cyanide). [Pg.872]

The catalyst, which may be regarded as complementary to Raney nickel (Section VI,5) is largely used for the hydrogenation of esters (esters of monobasic and of dibasic acids to alcohols and glycols respectively) ... [Pg.872]

Catalytic hydrogenation is mostly used to convert C—C triple bonds into C C double bonds and alkenes into alkanes or to replace allylic or benzylic hetero atoms by hydrogen (H. Kropf, 1980). Simple theory postulates cis- or syn-addition of hydrogen to the C—C triple or double bond with heterogeneous (R. L. Augustine, 1965, 1968, 1976 P. N. Rylander, 1979) and homogeneous (A. J. Birch, 1976) catalysts. Sulfur functions can be removed with reducing metals, e. g. with Raney nickel (G. R. Pettit, 1962 A). Heteroaromatic systems may be reduced with the aid of ruthenium on carbon. [Pg.96]

Nitro groups are efficiently reduced with hydrogen over Raney nickel catalyst (I. Fel-ner, 1967), with hydrides, or with metals. [Pg.112]

Single-bond cleavage with molecular hydrogen is termed hydrogenolysis. Palladium is the best catalyst for this purpose, platinum is not useful. Desulfurizations are most efficiently per-formed with Raney nickel (with or without hydrogen G.R. Pettit, 1962 A or with alkali metals in liquid ammonia or amines. The scheme below summarizes some classes of compounds most susceptible to hydrogenolysis. [Pg.113]

A mixture of 3-methoxy-2-nitro-P-pyrrolidinostyrene (lOg, 40 mmol) and Raney nickel (25 g) in methanol-THF (40 ml of each) was heated to 60"C and,... [Pg.8]


See other pages where Raney is mentioned: [Pg.498]    [Pg.499]    [Pg.560]    [Pg.561]    [Pg.566]    [Pg.870]    [Pg.870]    [Pg.871]    [Pg.2]    [Pg.13]    [Pg.31]    [Pg.31]    [Pg.32]    [Pg.78]    [Pg.93]    [Pg.122]    [Pg.154]    [Pg.82]    [Pg.87]    [Pg.98]    [Pg.98]    [Pg.109]    [Pg.112]    [Pg.156]    [Pg.156]    [Pg.165]    [Pg.287]    [Pg.8]    [Pg.9]    [Pg.9]    [Pg.9]    [Pg.9]   
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Acetylene using Raney nickel

Activity of Raney nickel catalysts

Alcohols, secondary, oxidation with Raney nickel

Alkaline fuel cells, Raney-nickel anodes

Aluminum (s. a. under Raney

Amines Raney nickel

Arenes Raney nickel

Benzaldehyde, by condensation Raney nickel alloy

Benzyl group Raney nickel

Benzylic halides Raney nickel

Carbohydrates by Raney nickel, in the field

Catalysi, Raney nickel

Catalyst, Raney nickel estimation of quantity

Catalyst, Raney nickel methylcyclohexane

Catalyst, Raney nickel storage under alcohol, dioxane, and

Catalyst, alumina Raney nickel

Catalysts Raney alloy

Catalysts Raney metal

Catalysts Raney ruthenium

Catalysts with Raney nickel

Catalytic hydrogenation with raney nickel

Cathodes Raney-nickel coated

Characterization Raney nickel

Cinnamaldehyde, by reduction of cinnamonitrile with Raney nickel alloy in formic acid

Coatings Raney-nickel

Cobalt, hydrogenation Raney

Cold rolling, Raney-nickel-coated cathodes

Cu Raney

Dehalogenation Raney nickel

Desulfurization with Raney nickel

Desulfurization, catalytic Raney nickel

Desulfurization, catalytic with Raney nickel

Deuterio-Raney nickel

Deuterio-Raney nickel catalyst

Dioxane use of, in hydrogenations with Raney

Dithianes reduction with Raney nickel

Dithioacetals Raney nickel

Electrocatalysts Raney nickel

Gas Diffusion Electrodes with Raney Nickel Catalysts

Halodeoxy sugars Raney nickel catalyst

Hewitt G. Fletcher, Jr. and Nelson K. Richtmyer, Applications in the Carbohydrate Field of Reductive Desulfurization by Raney Nickel

Hydrazides Raney nickel

Hydrogen, on Raney nickel

Hydrogenation With Raney nickel

Hydrogenation catalysts Raney nickel

Hydrogenation catalysts Raney nickel-2-Propanol

Hydrogenation, of a double bond Raney nickel

Hydrogenation, of a double bond over Raney nickel for reductive alkylation

Imidazol 2, 3 Raney-Nickel

Mechanism, Raney nickel alkylation

Mechanism, Raney nickel desulfurization

Mechanism, Raney nickel reagents

Metal catalysts Raney nickel

Modified Raney nickel catalyst

Modified Raney nickel catalyst hydrogenation

Ni Raney

Nickel Murray Raney

Nickel catalyst, Raney, in preparation

Nickel catalyst, Raney, in preparation of 2,2 -bipyridine

Nickel catalysts, Raney Universal Oil Products

Nickel, Raney, reductive desulfurization

Nitriles Raney cobalt

O-chlorobenzonitrile with Raney

Of p-cyanobenzenesulfonamide with Raney nickel alloy

Oximes, reaction with Raney nickel

P-Cyanobenzenesulfonamide, reduction with Raney nickel

P-Cyanobenzenesulfonamide, reduction with Raney nickel alloy

P-Methoxybenzaldehyde, by reduction Raney nickel alloy

Preparation Raney nickel

Preparation of Raney Nickel Catalyst

Promoters, Raney nickel

Pyrazoles Raney nickel

Raney Cobalt

Raney Ni desulfurization

Raney Ni-catalyzed hydrogenation

Raney Nickel-catalyzed coupling

Raney Nickel-catalyzed coupling reaction

Raney alkyne hydrogenation

Raney catalyst, applications

Raney catalysts

Raney catalysts s. Nickel

Raney chiral

Raney cobalt, hydrogenation catalyst

Raney copper

Raney copper catalyst

Raney copper hydrogenation, selective

Raney copper, hydrogenation catalyst

Raney copper-based catalysts

Raney deuterated

Raney gold

Raney hydrogenation

Raney hydrogenations with

Raney iron catalyst

Raney iron, hydrogenation catalyst

Raney metal electrodes

Raney metals

Raney nickel 1-thio sugars

Raney nickel Catalysts, Preparation

Raney nickel Subject

Raney nickel a-alkylthio carbonyl compounds

Raney nickel activity

Raney nickel adsorbed species

Raney nickel alcohols

Raney nickel alkyl halides

Raney nickel alloy composition

Raney nickel alloy, reduction

Raney nickel alloy, reduction of aromatic nitriles to aldehydes

Raney nickel asymmetric hydrogenations with

Raney nickel aziridines

Raney nickel benzylic alcohols

Raney nickel carbonyl compounds

Raney nickel catalysis

Raney nickel catalyst

Raney nickel catalysts activity

Raney nickel catalysts composition

Raney nickel catalysts modification

Raney nickel catalysts properties

Raney nickel catalysts selectivity

Raney nickel catalysts types

Raney nickel catalytic hydrogenation

Raney nickel commercial

Raney nickel composition

Raney nickel deactivated

Raney nickel deactivation

Raney nickel deselenations

Raney nickel desulfurization

Raney nickel desulfurization catalyst

Raney nickel desulfurizations

Raney nickel desulphurisation

Raney nickel deuteration catalyst

Raney nickel dinitriles

Raney nickel disulfides

Raney nickel electrodes

Raney nickel epoxides

Raney nickel for hydrogenation reactions

Raney nickel halides

Raney nickel hydrogen

Raney nickel hydrogen transfer

Raney nickel hydrogenation

Raney nickel hydrogenolysis

Raney nickel indoles

Raney nickel ketones, stereoselective

Raney nickel ketones, with promoters

Raney nickel mechanism

Raney nickel mercaptals

Raney nickel naphthalenes

Raney nickel nitriles

Raney nickel oximes

Raney nickel oxiranes

Raney nickel phenols, ketones from

Raney nickel pyridines

Raney nickel reaction with dithianes

Raney nickel reaction with sulfur compound

Raney nickel reduction

Raney nickel reductive amination

Raney nickel with promoters

Raney nickel*

Raney nickel, Table

Raney nickel, defined

Raney nickel, reductive cleavage

Raney nickel, sulfurization

Raney nickel-2-Propanol

Raney nickel-aluminium alloy

Raney nickel-aluminum alloy

Raney nickle

Raney palladium

Raney process

Raney promoting elements

Raney ruthenium

Raney selectivity

Raney system

Raney type nickel-cobalt catalyst

Raney type skeleton catalysts

Raney zinc, hydrogenation catalyst

Raney, Murray

Raney-Cobalt catalyst

Raney-Ni/tartaric acid

Raney-nickel Desulphurization

Raney-nickel catalyst utilization

Raney-nickel cathodes

Raney-type skeleton metals

Raney® alloy

Raney’s nickel

Reduction by Raney nickel

Reduction by hydrogen and Raney nickel

Reduction reactions with Raney nickel

Reduction with Raney

Reduction with Raney nickel

Reduction with hydrogen/Raney

Reduction, by hydrogen and Raney

Reduction, by hydrogen and Raney Clemmensen

Reduction, by hydrogen and Raney chloride

Reduction, by hydrogen and Raney electrolytic

Reduction, by hydrogen and Raney of a hydroxylamino acid to an amino

Reduction, by hydrogen and Raney with simultaneous amination

Skeletal alloy catalysts (Raney metals)

Sodium hypophosphite-Raney nickel

The Reduction of Sugars to Alcohols by Hydrogen and Raney Nickel

The Uses of Raney Nickel Eugene Lieber and Fred L. Morritz

Thioethers reduction with Raney nickel

Thiols Raney nickel

With Raney

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